US

A military honor guard prepares for US Chief of Naval Operations Admiral Jonathan Greenert's visit with Commander in Chief of The People's Liberation Army (PLA) Navy Admiral Wu Shengli at a welcoming ceremony at the PLA Navy headquarters outside of Beijing, China, 15 July 2014.  For the first time since 1971 China's navy participated alongside the US navy in Rim of the Pacific naval exercises last week.

Stephen Shaver/EPA

A military honour guard prepares for US chief of naval operations Jonathan Greenert’s visit with commander-in-chief of The People’s Liberation Army (PLA) Wu Shengli at a welcoming ceremony at the PLA navy headquarters outside of Beijing, China

A Chinese woman adjusts the Chinese national flag near U.S. national flags before a Strategic Dialogue expanded meeting that's part of the U.S.-China Strategic and Economic Dialogue at the Diaoyutai State Guesthouse in Beijing, Thursday, July 10, 2014.

Ng Han Guan/AP

The US and Chinese national flags are prepared ahead of a meeting that forms part of the US-China Strategic and Economic Dialogue at Diaoyutai State Guesthouse in Beijing on Thursday.

University of Utah image of a map of the northern sky showing the "hot spot" where scientists detected an unusual concentration of high energy cosmic rays. PRESS ASSOCIATION Photo. Issue date: Tuesday July 8, 2014. A mysterious "hot spot" in the sky is emitting unusual numbers of powerful cosmic rays, say scientists. The discovery may shed new light on the origin of ultra-high energy cosmic rays, which still cannot be fully explained. The hot spot is centred two hand-widths below the "handle" of the Big Dipper, or Plough, an arrangement of seven stars within the Great Bear constellation.

Ben Stokes/University of Utah/PA

University of Utah image of a map of the northern sky showing the ‘hot spot’ where scientists say they are detecting an unusual concentration of high energy cosmic rays

A monsoon lightning storm strikes over the Mandalay Bay Resorts and Casino and Luxor hotels in Las Vegas, Nevada late July 7, 2014. Monsoon storms are forecast for the the rest of the week in the Nevada and Arizona states.  The Luxor Sky Beam can be seen shining into the sky from the top of the hotel's pyramid structure.

Gene Blevins/Reuters

A monsoon lightning storm strikes over the Mandalay Bay Resorts and Casino in Las Vegas, Nevada. Monsoon storms are forecast for the rest of the week in Nevada and neighbouring Arizona.

An antique car drives down Main street during a July Fourth parade in the village of Barnstable, Massachusetts July 4, 2014. Barnstable, which is located on Cape Cod in Massachusetts and was first settled in 1639, is celebrating its 375th anniversary in 2014.

Mike Segar /Reuters

An antique car drives down Main street during a July Fourth parade in the village of Barnstable, Massachusetts. Barnstable, which is located on Cape Cod in Massachusetts and was first settled in 1639, is celebrating its 375th anniversary

A man crosses a flooded Highway 64 as wind pushes water over the road as Hurricane Arthur passes through Nags Head, N.C., Friday, July 4, 2014.

Gerry Broome/AP

A man crosses the flooded Highway 64 as wind pushes water over the road as Hurricane Arthur passes through Nags Head, North Carolina on Friday morning

Wyatt Smith of Rexburg, Idaho, slides in the dirt as he pulls down a steer for a time of 4.3 seconds during the steer wrestling competition at Greeley Stampede Arena on Tuesday, July 1, 2014, in Greeley, Colo.

Greeley Tribune/Jim Rydbom/AP

Wyatt Smith of Rexburg, Idaho, slides in the dirt as he pulls down a steer in a time of 4.3 seconds during the steer wrestling competition at Greeley Stampede Arena in Colorado

A protester dressed as a copy of the Bible joins groups demonstrating outside the U.S. Supreme Court in Washington June 30, 2014. The U.S. Supreme Court on Monday ruled that business owners can object on religious grounds to a provision of U.S. President Barack Obama's healthcare law that requires closely held companies to provide health insurance that covers birth control.

Jonathan Ernst/Reuters

A protester dressed as a copy of the Bible joins groups demonstrating outside the US Supreme Court in Washington. The court on Monday ruled that business owners could object on religious grounds to a provision of President Barack Obama’s healthcare law that requires closely held companies to provide health insurance that covers birth control

U.S. Marines prepare to maneuver their AAVs (Amphibious Assault Vehicles) following the joint U.S.-Philippines naval exercise, dubbed Cooperation Afloat Readiness and Training (CARAT), Monday, June 30, 2014 at the Naval Education and Training Center at San Antonio township, Zambales province in northwestern Philippines. More than 100 Filipino and U.S. Marines in assault amphibious vehicles conducted a mock assault on imaginary enemies in military drills Monday on a beach in northwestern Philippines fronting the South China Sea, where Manila is locked in a territorial dispute with China.

Bullit Marquez/AP

US marines prepare to manoeuvre their AAVs (Amphibious Assault Vehicles) following the joint US-Philippines naval exercise, dubbed Co-operation Afloat Readiness and Training (CARAT), on Monday, at the Naval Education and Training Center at San Antonio township, Zambales province, in northwestern Philippines

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. Read more