"Congressional demands for an investigation grew on Monday over new disclosures that a secret CIA program to capture or kill al-Qaida leaders was concealed from Congress for eight years, perhaps at the behest of former Vice President Dick Cheney. The program, which never got off the ground and remains shrouded in mystery, was designed to target leaders of the terrorism network at close range, rather than with air strikes that risked civilian casualties, government officials with knowledge of the operation said Monday. The officials spoke on the condition of anonymity because they were not authorized to discuss it publicly. The program was canceled last month by CIA Director Leon Panetta shortly after he himself first learned of it."
I'm not sure that a CIA assassination squad is legal.
I'm not sure whether a program in the planning stage, "which never got off the ground", must be reported to Congress.
I am sure that a plan "to capture or kill al-Qaida leaders", "designed to target leaders of the terrorism network at close range, rather than with air strikes that risked civilian casualties", would be wildly popular and garner overwhelming support among the American public.
I don't know why any Democratic leader of Congress would want to pick this fight.