VIOLENT VIDEO: GRENADES KILL U.S. TROOPS IN IRAQ--CBS' LARA LOGAN REPORTS

The insurgents have come up with a new grenade that is very, very deadly in the war in Iraq.

In this video, CBS' Lara Logan shows how the new grenade works with dramatic footage of recent attacks on U.S. troops.

WATCH VIDEO HERE:

http://www.youtube.com/v/GFh2yqe8NQg&hl=en&fs=1

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