The U.S. Central Intelligence Agency doubts Yemen would be a tough ally of the U.S. in the fight on Al Qaeda at a time when the government is facing major challenges represented by the Houthi rebels in the far north and the secessionist movement in the south. The announcement by CIA director Leon Panetta comes after the U.S. said it had raised its military and financial development to Yemen to fight Al Qaeda in the Arabian Peninsula and boost its ailing economy, which experts say is a main reason for extremism in the country. The increase of the aid by...