In Yemen, lines blur as U.S. steps up airstrikes

As the pace quickens and U.S. targets expand, the distinction may be less clear between Al Qaeda militants and those fighting only to overthrow Yemen's leaders.

WASHINGTON — A surveillance aircraft operated by the U.S. Joint Special Operations Command flew over southeastern Yemen on the evening of March 9, tracking a mid-level Al Qaeda commander as he drove to his mountain hideout.

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