Colin Powell says he was misquoted on the Gaza war. (Goran Tomasevic/Reuters)For a man who’s been successfully accused of war crimes by a convicted murderer, Colin Powell is a very effective defender.The former U.S. secretary of state took to his Facebook page last night to dispute a news report that said he called the war in Gaza “legitimate.” Powell said he was misinterpreted, writing that “all I said was that Hamas bears responsibility for the ongoing conflict.”The quote — “Hamas was culpable for inciting the recent violence and prevented the effective operation of the ceasefire,”