From STRATFOR.COM
Egypt: Gazans Fire On Workers At Border Barrier December 18, 2009 Egyptian security officials said unidentified Gaza gunmen opened fire from across the border on workers installing an underground metal barrier to seal off weapons smuggling tunnels, AP reported Dec. 18. The officials stated that no one was hurt but some equipment was damaged in the shooting. Hamas border officials confirmed shots were fired twice toward Egyptian workers.
its a too short post but a good one