The nearly year-long debate over expansion of the CIA search-and-destroy program using unmanned drone aircrafts has reached a new bump in the road: President Obama. Although Obama and his top aides initially took to the idea of expanding the drone program, the president is now siding with advisers who say expansion is risky and could lead to civilian causalities, especially in urban areas like Quetta, where intelligence reports say Taliban leader Mullah Mohammed Omar may be hiding. Thus far, the program has proved to be successful, as seen by the deaths of several top leaders of Al Qaeda, including Baitullah Mehsud, leader of the Pakistani Taliban and the man behind Benazir Bhutto's murder. But Obama remains hesitant. Officials say the debate will likely continue, but a White House spokesperson had no comment.