Sen. Bernard Sanders (I-Vt.) announced Monday that the Senate Committee on Health, Education, Labor and Pensions has postponed until June a hearing on the government's system of purchasing private insurance to cover contractor injuries and deaths in war zones. The committee, which previously scheduled the hearing for May 21, plans to examine whether the Labor and Defense Departments provided adequate oversight of the system, which has channeled billions of dollars to AIG and other major insurance carriers. The hearing follows a joint report by the Los Angeles Times, ABC News and ProPublica that AIG and other carriers routinely deny claims for health care for civilian workers injured in Iraq and Afghanistan. A House Oversight and Government Reform panel is also planning a hearing on the topic this summer.