Egyptian presidential candidate and former Arab League Secretary General Amr Moussa delivers a speech to Bedouins in Ras Sidr during a campaign trip to the South Sinai last week. Egyptians are anticipating the first presidential elections after last year's ouster of Hosni Mubarak. Asmaa Waguih/Reuters/Landov hide caption

itoggle caption Asmaa Waguih/Reuters/Landov

A woman walks past a banner placed around the perimeter of the Rand Afrikaans University in Johannesburg on World AIDS Day. The university used the banner to raise public awareness about AIDS and the devastating toll the disease has had in South Africa. Paul Botes/AP Photo hide caption

itoggle caption Paul Botes/AP Photo

Journalist Marie Colvin (second from left) poses with Libyan rebels in Misrata on June 4, 2011. She was killed in the besieged Syrian city of Homs on Wednesday. Later that day in Tripoli, fellow war correspondents gathered to remember her. Zohra Bensemra/Reuters/Landov hide caption

itoggle caption Zohra Bensemra/Reuters/Landov