Israeli Prime Minister Benjamin Netanyahu embraces Meir Dagan, the then-outgoing chief of the Mossad intelligence agency, in January 2011. Dagan is among former security chiefs who have recently criticized Netanyahu, saying he has exaggerated the urgency of the threat posed by Iran's nuclear program. Ronen Zvulun/AP hide caption

itoggle caption Ronen Zvulun/AP

Bedouins watch flames rise in July 2011 after masked gunmen blew up a terminal of the Egyptian natural gas pipeline to Israel and Jordan. It was one of many attacks on the pipeline since the popular uprising that ousted longtime Egyptian leader Hosni Mubarak last year. AP hide caption

itoggle caption AP

A mural in Cairo depicts the split faces of Egyptian military ruler Field Marshal Hussein Tantawi, left, and ousted president Hosni Mubarak accompanied by Arabic that reads, "who assigned you did not die, No for gas export to Israel, the revolution continues." Nasser Nasser/AP hide caption

itoggle caption Nasser Nasser/AP

Turkish army personnel patrol near the border with Syria in Kilis earlier this month. Activists and smugglers say it's getting harder to get medical and communications equipment into Syria across the Turkish border. Bulent Kilic/AFP/Getty Images hide caption

itoggle caption Bulent Kilic/AFP/Getty Images

Members of the Syrian opposition walk with a U.N. observer during a visit by monitors to the restive city of Homs, Syria, on April 21. Opposition activists say observers appear to help bring calm if they stay in an area. Two monitors have been deployed in Homs for the past several days. Khaled Tallawy/UPI/Landov hide caption

itoggle caption Khaled Tallawy/UPI/Landov

During a demonstration at Cairo's Tahrir Square last week, veiled Egyptian women hold posters supporting Muslim cleric Hazem Abu Ismail, an ultra-conservative preacher who was disqualified from running for the presidential elections on technical grounds. Amr Nabil/AP hide caption

itoggle caption Amr Nabil/AP

Israelis who support Jewish settlements in the West Bank rally against a demolition order for the outpost of Ulpana on Sunday. Israeli courts have ordered the outpost torn down, but Prime Minister Benjamin Netanyahu's government is looking to keep it intact. Uriel Sinai/Getty Images hide caption

itoggle caption Uriel Sinai/Getty Images