A man thought to be Osama bin Laden releases an audio tape calling on Muslim fighters to help end the Israeli blockade of Gaza. In the tape, released by posting on the Internet, the speaker says it is the duty of every Muslim to fight the “oppressive closure.” The tape is released two days after the previous one (see May 16, 2008), on the day US President Bush ends a visit to the Middle East. [Sky News, 5/18/2008]