Ana Ivanovic of Serbia laughs as she sits on the court after taking a spill while playing Zheng Jie of China during the US Open tennis tournament in New York on Wednesday. Ivanovic won 6-3, 6-0. Justin Berl/AP
A US Army soldier from 1st Battalion, 14th Infantry Regiment stands with Iraqi policemen in a courtyard outside an Iraqi police station during a joint operation with Iraqi security forces on the first day after America ended its combat role, on Wednesday in Hawija, north of Baghdad, Iraq. The US marks on Wednesday the transition to the final phase of the Iraq war, shifting the focus of the remaining 50,000 American troops from combat operations to preparing Iraqi security forces to protect the country on their own. Maya Alleruzzo/AP
In this Aug. 31, 2010 photo, Inge, a black rhinoceros at the Cleveland Metroparks Zoo, receives a gentle nuzzle from her yet-to-be-named daughter as Inge feeds in the rhino house at the zoo, in Cleveland. The yet-to-be-named baby rhino born on August 17 weighed near 65 lbs. at birth and will gain 3-4 lbs. a day until she is 6 months old. Black rhinos, native to Africa, are the most endangered of the five rhino species, with only about 3,000 in the world. John Kuntz/The Plain Dealer/AP
An Israeli boy holds a fist full of gravel as he takes part in a building activity in what settlers say is a response to Tuesday night's shooting attack which killed four Israelis near the West Bank Jewish settlement of Kiryat Arba, at the West Bank Jewish settlement Adam on Wednesday. Baz Ratner/Reuters
Men run as angry protesters burn a vehicle in reaction to a bomb attack during a Shi'ite Muslim procession in Lahore on Wednesday. Three bombs exploded at a Shi'ite procession in the Pakistani city, killing at least 18 people and wounding over 100, piling pressure on a government already overwhelmed by floods. Mohsin Raza/Reuters
President Barack Obama meets with Jordan's King Abdullah II, on Wednesday, in the Oval Office. Susan Walsh/AP
The new mascot of the West Virginia Power, 'Chuck,' debuts atop the Power dugout Tuesday evening at Appalachian Power Park. Bob Wojcieszak/Daily Mail/AP
Apple Chief Executive Steve Jobs smiles after the Apple's music-themed September media event in San Francisco, California on Wednesday. Robert Galbraith/Reuters
This product image from September 1 shows the Ladylike Dress by Carmen Marc by Carmen Marc Valvo. Lord & Taylor/AP
In this TV grab taken from a video released by Chile's government on Tuesday, Aug. 31, miners react inside the San Jose mine in Copiapo, Chile. Thirty-three miners have been trapped deep underground in the copper and gold mine since it collapsed on Aug. 5. Chile's Government Video/AP
A surfer rides the waves as Hurricane Earl aproaches in Buxton, N.C., on Wednesday. A tourist evacuation of Hatteras Island and Ocracoke Island is underway as Hurricane Earl approaches North Carolina's Outer Banks. Gerry Broome/AP
Brazil's Tiago Splitter (l.) goes up for a shot as Slovenia's Primoz Brezec defends during the preliminary round of the World Basketball Championship, on Wednesday, in Istanbul, Turkey. Mark J. Terrill/AP
Western leaders are expressing outrage after Islamic State militants released a video claiming to have killed Peter Kassig, an aid worker in Syria who was formerly a U.S. soldier. Addressing Obama, a man threatens to "slaughter your people in your streets."
ByMariam Karouny, Reuters
Islamic State militants said in a video on Sunday they had beheaded U.S. hostage Peter Kassig and warned the United States they would kill other U.S. citizens "on your streets."