WASHINGTON, D.C. A senior U.S. lawmaker said Thursday that unmanned CIA Predator aircraft operating in Pakistan are flown from an airbase inside that country, a revelation likely to embarrass the Pakistani government and complicate its counterterrorism collaboration with the United States. The disclosure by Sen. Dianne Feinstein (D-Calif.), the chairwoman of the Senate Intelligence Committee, marked the first time a U.S. official had publicly commented on where the Predator aircraft patrolling Pakistan take off and land. At a hearing, Feinstein expressed surprise at Pakistani opposition to the ongoing campaign of Predator-launched CIA missile strikes against Al Qaeda targets along Pakistan's...