Libyan rebels take part in a military parade for new rebels and calling for arming the revolution and rejecting foreign ground troops' intervention in the conflict in Benghazi April 27, 2011. REUTERS/Amr Abdallah Dalsh  (LIBYA - Tags: CIVIL UNREST POLITICS)AP – An Obama administration official says estimates of the death toll in Libya after more than two months of violence could reach as high as 30,000.