Carter has cancer on brain, will undergo radiation

Jimmy Carter, the former US president turned Nobel peace laureate and global humanitarian, revealed Thursday he has cancer on his brain but said he feels at peace and grateful for having lived a full life. Carter, 90, told a press conference that the finding of four melanoma spots stemmed from a procedure in which a tumor was removed from his liver this month. The 39th president said that as his treatment continues, it is likely doctors will find cancer elsewhere in his body.