Meanwhile in Iraq, at least 88 people died on Wednesday in a series of attacks. In Baghdad, 32 people died in a car bombing that officials said might have involved chlorine gas. A mortar attack on the U.S.-controlled Green Zone killed at least two people and injured 10 more. One of the dead was said to be a driver for the staff of Prime Minister Nouri al-Maliki. The mortar attack raised new questions about whether the U.S. can keep the Green Zone secure.