US

An anti-US protester dressed like the St...An anti-US protester dressed like the Statue of Liberty stands next to a giant mock US flag during a protest near the Malacanang palace in Manila on April 29, 2014, as US President Barack Obama's visit to the capital winds down. The protesters were protesting against the newly-signed defense agreement between the US and the Philippines, with President Obama ending an Asian tour April 29 with a warning to China against using force to resolve territorial disputes, and an "ironclad" promise of military support for the Philippines.     AFP PHOTO/TED ALJIBETED ALJIBE/AFP/Getty Images

Ted Aljibe/AFP

An anti-US protester dressed like the Statue of Liberty stands next to a giant mock US flag during a protest near the Malacanang palace in Manila, as US President Barack Obama‘s visit to the capital winds down. The protesters were protesting against the newly-signed defense agreement between the US and the Philippines. 

A Filipino activist holds a slogan near the Malacanang presidential palace in Manila, Philippines, Monday April 28, 2014 during a rally to oppose the Enhanced Defense Cooperation Agreement between the Philippines and U.S. The U.S. military will have greater access to bases across the Philippines under the new 10-year agreement signed today in conjunction with U.S. President Barack Obama's visit and seen as an effort by Washington to counter Chinese aggression in the region.

Aaron Favila/AP

An activist holds a placard near the Malacañang presidential palace in Manila, during a rally opposing the Enhanced Defense Co-operation Agreement between the Philippines and US

U.S. President Obama walks with Japan's Emperor Akihito and his wife Empress Michiko past an honour guard with Japan and U.S. flags during an official arrival ceremony at the Imperial Palace in Tokyo...U.S. President Barack Obama walks with Japan's Emperor Akihito (3rd L) and his wife Empress Michiko (L) past an honour guard with Japan and U.S. flags during an official arrival ceremony at the Imperial Palace in Tokyo April 24, 2014. Obama will use a state visit to Japan on Thursday to try to reassure Asian allies of his commitment to ramping up U.S. engagement in the region, despite Chinese complaints that his real aim is to contain Beijing's rise. REUTERS/Jim Watson/Pool

Jim Watson/Reuters

US president Barack Obama with Japan’s emperor Akihito and empress Michiko pass an honour guard during an arrival ceremony at the Imperial Palace in Tokyo 

Hoover Dam, a concrete arch-gravity dam in the Black Canyon of the Colorado River on the border between the US states of Arizona and Nevada. Hoover Dam ,finished in 1936, impounds Lake Mead, the largest reservoir in the United States by volume. The dam's generators provide power for public and private utilities in Nevada, Arizona, and California. Hoover Dam is a major tourist attraction; nearly a million people tour the dam each year.

Joe Klamar/AFP

The sun rises over the Hoover Dam, a concrete arch-gravity dam in the Black Canyon of the Colorado River on the border between the US states of Arizona and Nevada. The Hoover Dam was finished in 1936 and impounds Lake Mead, the largest reservoir in theUS by volume.

Filipino activists hold paper mache skulls  painted with US flags as they march outside the US embassy in Manila, Philippines on Monday in a rally condemning the upcoming visit of US President Barack Obama to the country. Activists also called for an end to the presence of US troops in the country and the Visiting Forces Agreement (VFA).

Dennis M. Sabangan/EPA

Filipino activists wear painted skull masks at a march outside the US embassy in Manila, Philippines, on Monday to condemn an upcoming visit by US President Barack Obama. Activists also called for an end to the presence of US troops in the country and the visiting forces agreement.

Largest Freefall Formation world record attempt in Arizona USA...epaselect epa04150210 222 skydivers from World Team attempt to break the world record for the Federation Aeronautique Internationale (FAI) Largest Sequential Freefall Formation attempt at Skydive Arizona in Eloy, Arizona, USA, 01 April, 2014.

Roy Dabner/EPA

222 skydivers from World Team attempt to break the world record for the Federation Aeronautique Internationale (FAI) Largest Sequential Freefall Formation attempt at Skydive Arizona in Eloy, Arizona, US on Monday. 

Lee Montgomery sits and waits to sign up for health care insurance at the business office of Parkland Hospital in Dallas, Monday. According to Montgomery, he as tried several times to sign up for private heath insurance in the online markets created by President Obama's heath care law, but has been unable to so he came to Parkland for face to face help.

LM Otero/AP

Lee Montgomery waits to sign up for healthcare insurance at the office of Parkland Hospital in Dallas, on Monday. Mr Montgomery says he has tried and failed several times to sign up for private heath insurance in the online markets created by President Barack Obama’s healthcare law, so has opted to sign up in person instead.

Amphibious assault vehicles of the South Korean Marine Corps throw smoke bombs as they move to land on shore during a U.S.-South Korea joint landing operation drill in Pohang...Amphibious assault vehicles of the South Korean Marine Corps throw smoke bombs as they move to land on shore during a U.S.-South Korea joint landing operation drill in Pohang March 31, 2014. The drill is part of the two countries' annual military training called Foal Eagle, which began on February 24 and runs until April 18.  North Korea declared a no-sail warning on Monday for areas off its west coast near a disputed border with South Korea and has notified the South that it will conduct firing drills, a South Korean government official said. The warning comes amid heightened tensions surrounding the North after the U.N. Security Council condemned Pyongyang for its mid-range missile launches last week, just as the leaders of South Korea, Japan and the United States met to discuss the North's arms programme.

Kim Hong-Ji/Reuters

Amphibious assault vehicles of the South Korean Marine Corps throw smoke bombs as they land onshore during a US-South Korea joint landing operation drill in Pohang. The drill is part of the two countries’ annual military training called Foal Eagle, which began on February 24 and runs until April 18.

U.S. President Barack Obama waves as he leaves Rome's airport...U.S. President Barack Obama waves as he leaves Rome's airport March 28, 2014. REUTERS/Giampiero Sposito  (ITALY - Tags: POLITICS)

Giampiero Sposito/Reuters

U.S. President Barack Obama waves as he leaves Rome‘s airport. 

Wind-driven waves crash on a sea wall in Scituate, Mass., Wednesday, March 26, 2014. Cape Cod and the islands were expected to bear the brunt of the spring storm that struck full force Wednesday. The storm could drop up to 10 inches of snow.

Michael Dwyer/AP

Wind-driven waves crash on a sea wall in Scituate, Massachusetts. Cape Cod and the islands were expected to bear the brunt of the spring storm that struck full force Wednesday. The storm could drop up to 10 inches of snow.

US First Lady Michelle Obama (C) perform...US First Lady Michelle Obama (C) performs "tai chi" with students from the Chengdu No7 High School in Chengdu in China's southwest Sichuan province on March 25, 2014. Michelle Obama arrived in China on March 20 with her mother and daughters to kick off a seven-day, three-city tour where she will focus on education and cultural exchange.   AFP PHOTO / Peter PARKSPETER PARKS/AFP/Getty Images

Peter Parks/AFP

US First Lady Michelle Obama performs t’ai chi with students from the Chengdu No 7 High School in Chengdu, in China’s southwest Sichuan province. Michelle Obama arrived in China last week with her mother and daughters to start a seven-day, three-city tour where she will focus on education and cultural exchange. 

US First Lady Michelle Obama (C) and Peng Liyuan, wife of Chinese President Xi Jinping are escorted by officials as they visit the Forbidden City in Beijing on March 21, 2014.  Michelle Obama arrived in Beijing with her mother and daughters to kick off a seven-day, three-city tour where she will focus on education and cultural exchange.

Andy Wong/AFP

US first lady Michelle Obama and Peng Liyuan, wife of Chinese president Xi Jinping, are escorted by officials as they visit the Forbidden City in Beijing on Friday. Mrs Obama arrived in Beijing with her mother and daughters to kick off a seven-day, three-city tour where she will focus on education and cultural exchange.

A Filipino student shouts anti-US slogans outside the US embassy in Manila, Philippines, 21 March 2014 in a rally condemning the docking of the USS Blue Ridge and the upcoming visit of US President Barack Obama to the country. Activists also called for an end to the presence of US troops in the country and the Visiting Forces Agreement (VFA). Obama is to visit Japan, South Korea, Malaysia and the Philippines in late April. The trip is part of his efforts to broaden US engagement in the Asia-Pacific region on all fronts, from strategic security issues to trade and diplomacy. Obama had originally planned an Asia trip for late 2013, but was forced to cancel during the budget and debt limit crisis that closed the US government for more than two weeks in October.

Dennis M. Sabangan/EPA

A Filipino student protests outside the US embassy in Manila, Philippines, in a rally condemning the docking of the USS Blue Ridge and the upcoming visit of US President Barack Obama. Activists also called for an end to the presence of US troops in the country and the Visiting Forces Agreement.

Heavy smoke pours from the debris as the Fire Department of New York (FDNY) responds to a 5-alarm fire and building collapse at 1646 Park Ave in the Harlem neighborhood of Manhattan March 12, 2014 in New York City. Reports of an explosion were heard before the collapse of two multiple-dwelling buildings that left at least 11 injured.

Andrew Burton/Getty Images

Heavy smoke pours from the debris as the New York fire department responds to a 5-alarm fire and building collapse at 1646 Park Avenue in the Harlem area of Manhattan in New York City. Reports of an explosion were heard before the collapse of two multiple-dwelling buildings that left at least 11 injured

Firemen spray their water cannon at protesters who are forcing their way closer to U.S. Embassy in Manila, Philippines, Tuesday, Feb. 25, 2014 during a protest against the forthcoming visit of U.S. President Barack Obama. The protesters were also calling for the pullout of U.S. troops in the country under the Visiting Forces Agreement

Bullit Marquez/AP

Firemen spray a water cannon at protesters forcing their way towards the US embassy in Manila on Tuesday during a protest against the forthcoming visit of US president Barack Obama. The protesters were also calling for the pullout of US troops in the country under the Visiting Forces Agreement.

A troop of the Japan Ground Self-Defense Force participates with the US Marine Corps of  Expeditionary Fire Support System during the US -JAPAN military exercise Iron Fist 2014  outside the USMC base in Pendleton, California on February 06, 2014.

Joe Klamar/AFP

A member of the Japan Ground Self-Defence Force takes part in the US -Japan Exercise Iron Fist manoeuvres at the US Marine base in Pendleton, California

TOPSHOTS Ukrainian pro-EU protesters kee...TOPSHOTS Ukrainian pro-EU protesters keep warm around a bonfire in Independence Square in Kiev early on January 17, 2014. The European Union and the United States expressed concern after the Ukrainian parliament passed laws to curb the right to protest, a move the opposition called a power grab.  Western rights groups meanwhile denounced the bills as an attempt by President Viktor Yanukovych to impose a "dictatorship" and called on him to veto the legislation. AFP PHOTO/GENYA SAVILOVGENYA SAVILOV/AFP/Getty Images

Genya Savilov/AFP

Pro-EU protesters keep warm round a bonfire in Independence Square, Kiev, Ukraine. The EU and US expressed concern after the Ukrainian parliament passed laws to curb the right to protest, a move the opposition described as a power grab. Western rights groups denounced the bills as an attempt by President Viktor Yanukovych to impose a ‘dictatorship’ and called on him to veto the legislation. 

A man walks past a car partially covered in ice in Baltimore where temperatures continue to remain well below freezing.

Patrick Semansky/AP

North America has been hit by the coldest temperatures in decades after a a polar vortex led to extreme weather conditions. In Baltimore, temperatures remain well below freezing, with ice forming on buildings, cars and roads.

Ice forms on an abandoned dock structure in the East River due to unusually low temperatures caused by a Polar Vortex in New York January 7, 2014.

Lucas Jackson/Reuters

Ice forms on an abandoned dock in the East River as extreme freezing conditions, known as a polar vortex, hit New York. The Atlantic seaboard of the US is gripped by the coldest weather it has had in decades

National Park Service workers spread salt on icy steps of the Lincoln Memorial in Washington...National Park Service workers spread salt on the icy steps of the Lincoln Memorial in Washington January 3, 2014. A heavy snowstorm and dangerously cold conditions gripped the northeastern United States on Friday, delaying flights, paralyzing road travel and closing schools and government offices across the region.  REUTERS/Gary Cameron

Gary Cameron /Reuters

National Park Service workers spread salt on the icy steps of the Lincoln Memorial in Washington. A heavy snowstorm and dangerously cold conditions gripped the northeastern United States on Friday.