america

Demonstrators Gather Outside Baltimore Police Station to Protest Death of Freddie Gray...epa04723487 A young girl peers into a destroyed Baltimore City Police car along North Avenue near a CVS that was on fire during a protest for the death of Freddie Gray in Baltimore, Maryland, USA, 27 April 2015. Gray died of spinal cord injuries on 19 April while in police custody; the US Justice Department announced that they are launching their own investigation into the case.  EPA/NOAH SCIALOM

Noah Scialom/EPA

A young girl peers into a destroyed Baltimore City Police car along North Avenue near a CVS that was on fire during a protest for the death of Freddie Gray in Baltimore, Maryland

Protesters Hold Vigil And March Over Death Of Freddie Gray After Police Arrest...BALTIMORE, MD - ARPIL 21:  Protestors walk toward Baltimore Police Department's Western District police station during a march and vigil over the death of Freddie Gray, April 21, 2015 in Baltimore, Maryland.  Gray, 25, died from spinal injuries on April 19, one week after being taken into police custody. (Photo by Drew Angerer/Getty Images)

Drew Angerer/Getty

Protestors walk towards Baltimore Police Department’s Western District police station during a march and vigil over the death of Freddie Gray in Baltimore, Maryland 

rthur Prioleau...Rev. Dr. Arthur Prioleau holds a sign during a protest in the shooting death of Walter Scott at city hall in North Charleston, S.C., Wednesday, April 8, 2015.  Scott was killed by a North Charleston police office after a traffic stop on Saturday. The officer, Michael Thomas Slager,  has been charged with murder. (AP Photo/Chuck Burton)

Chuck Burton/AP

Rev. Dr. Arthur Prioleau holds a sign during a protest in the shooting death of Walter Scott at city hall in North Charleston, South Carolina. Scott was killed by a North Charleston police office after a traffic stop on Saturday. The officer, Michael Thomas Slager, has been charged with murder 

Alan Gross is greeted with hugs after arriving at Joint Base Andrews, Maryland in this White House handout photo...Alan Gross is greeted with hugs after arriving at Joint Base Andrews, Maryland in this December 17, 2014 White House handout photo. The United States and Cuba agreed on Wednesday to restore diplomatic ties that Washington severed more than 50 years ago, and President Barack Obama called for an end to the long economic embargo against its old Cold War enemy.  Gross spent 5 years as a prisoner in Cuba. REUTERS/Lawrence Jackson/White House/Handout via Reuters  (UNITED STATES - Tags: POLITICS) THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS

Lawrence Jackson/White House/Reuters

Alan Gross, an American imprisoned in Cuba for five years, arrives at Joint Base Andrews, Maryland. The US and Cuba agreed on Wednesday to restore diplomatic ties that Washington severed more than 50 years ago, and President Barack Obama called for an end to the long economic embargo against its old enemy. 

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 

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. 

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. 

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. 

This image provided by NASA March 16, 2014 shows a portion of the Florida Keys taken by Astronaut Rick Mastracchio from the International Space Station. (AP Photo/NASA, Rich Mastracchio)

Rich Mastracchio/Nasa/AP

This image provided by NASA shows a portion of the Florida Keys taken by Astronaut Rick Mastracchio from the International Space Station 

A worker power washes the West Wing of t...A worker power washes the West Wing of the White House January 15, 2014 in Washington, DC. AFP PHOTO/Brendan SMIALOWSKIBRENDAN SMIALOWSKI/AFP/Getty Images

Brendan Smialowski/AFP

A worker power-washes the West Wing of the White House in Washington D.C

The tower of New York's World Trade Center rises through a blanket of fog on Wednesday morning, Jan. 15, 2014, in this view looking south from the 48th floor at 42nd St. and 11th Ave in Midtown Manhattan. New Jersey is visible at top right.

Girish Tewani/AP

The tower of New York’s One World Trade Center pierces a blanket of fog. This photo is taken looking south from the 48th floor at 42nd Street and 11th Avenue in Midtown Manhattan. 

Travelling White House staff and press board the rear steps of Air Force One on a foggy morning in Seattle...Travelling White House staff and press board the rear steps of Air Force One on a foggy morning in Seattle, November 25, 2013. U.S. President Barack Obama is attending fundraisers and events on the economy and immigration in Los Angeles and San Francisco on Monday.

Jason Reed/Reuters

White House staff and press board the rear steps of Air Force One on a foggy morning in Seattle. US president Barack Obama is attending fundraisers and events on the economy and immigration in Los Angeles and San Francisco on Monday. 

An aerial view at night of the downtown Chicago skyline. An Arctic air mass is expected to chill much of the Central Plains and the East Coast through Monday with wind-chill temperatures dropping into the single digits overnight in some places.

Kiichiro Sato/AP

A nightime aerial view of downtown in the US city of Chicago

Artists A.Signl, left, and B.Shanti, second from right, of the artist group Captain Borderline paint their mural   'Surveillance of the fittest' at a wall in Cologne, Germany, Thursday, Oct. 24, 2013. The painting shows an American Bald Eagle with surveillance cameras watching a herd of sheep to draw attention to the spying program of the American National Security Agency. Germany demanded answers to ìall open questionsî about U.S. surveillance Thursday following allegations that American intelligence may have targeted Chancellor Angela Merkelís cellphone, and her chief of staff noted that Washington hasnít denied past snooping.

Frank Augstein/AP

Artists A Signl (left) and B Shanti (second from right), of the artist group Captain Borderline, paint a mural “Surveillance of the Fittest” on a wall in Cologne, Germany, to draw attention to the spying programme of the US intelligence services 

Police tape blocks a closed Lincoln Memo...Police tape blocks a closed Lincoln Memorial on the National Mall October 1, 2013 in Washington, DC. The US government is in a forced shutdown after lawmakers failed to pass a spending bill last night. AFP PHOTO/Brendan SMIALOWSKIBRENDAN SMIALOWSKI/AFP/Getty Images

Brendan Smialowski/AFP/Getty

Police tape blocks a closed Lincoln Memorial on Tuesday in Washington, DC. The US government is in a forced shutdown after lawmakers failed to pass a spending bill. 

An Iranian woman walks past a mural showing a gun painted with an interpretation of the American flag on the wall of the former US embassy in Tehran on September 25, 2013. Leaders from Iran and the United States have not met since the 1979 Islamic Revolution brought often open hostility to their contacts, particularly over Iran's contested nuclear program.

Atta Kenare/AFP

An Iranian woman walks past a mural showing a gun painted with an interpretation of the American flag on the wall of the former US embassy in Tehran on Wednesday. Leaders from Iran and the United States have not met since the 1979 Islamic Revolution brought often open hostility to their contacts, particularly over Iran’s contested nuclear program.

Cher...Cher arrives by police motorcycle for her performance on NBC's "Today" show on Monday, Sept. 23, 2013 in New York. (Photo by Charles Sykes/Invision/AP)

AP/Charles Sykes

Cher, the US singer and actor, arrives by police motorcycle for a performance on NBC’s Today show on Monday. 

US Army Private First Class Bradley Mann...US Army Private First Class Bradley Manning arrives alongside military officials at a US military court facility to hear his sentence in his trial at Fort Meade, Maryland on August 21, 2013. A sentencing decision will be announced later Wednesday. AFP PHOTO / Saul LOEBSAUL LOEB/AFP/Getty Images

Saul Loeb/AFP

Army Private First Class Bradley Manning arrives at a US military court facility to hear his sentence in his trial at Fort Meade, Maryland, on Wednesday. Manning was sentenced for 35 years for his part in the WikiLeaks affair 

Cyclists ride past the reflecting pool in front of the Lincoln Memorial in Washington...Cyclists ride past the reflecting pool in front of the Lincoln Memorial in Washington August 20, 2013. The Rev. Dr. Martin Luther King, Jr., delivered his "I have a Dream" speech on August 28, 1963 on the steps of the Lincoln Memorial during the March on Washington for Jobs and Freedom. This coming week, Washington will play host to an array of events marking the historic anniversary.  REUTERS/Kevin Lamarque

Kevin Lamarque/Reuters

Cyclists ride past the reflecting pool in front of the Lincoln Memorial in Washington The Rev. Dr. Martin Luther King, Jr., delivered his “I have a Dream” speech on August 28, 1963 on the steps of the Lincoln Memorial during the March on Washington for Jobs and Freedom. This coming week, Washington will play host to an array of events marking the historic anniversary

Lightning strikes above the Mandalay Bay and Luxor casinos on the Las Vegas Strip as a thunderstorm moves through Las Vegas...Lightning strikes above the Mandalay Bay (L) and Luxor (C) casinos on the Las Vegas Strip as a thunderstorm moves through Las Vegas, Nevada July 20, 2013. REUTERS/Steve Marcus (UNITED STATES - Tags: ENVIRONMENT CITYSCAPE TPX IMAGES OF THE DAY)

Steve Marcus/Reuters

Lightning strikes above the Mandalay Bay and Luxor casinos on the Las Vegas Strip as a thunderstorm moves through Las Vegas, Nevada in the US.