WASHINGTON - Osama bin Laden is still free and taunting America, five years after September 11, but his henchman Khalid Sheikh Mohammed, the brains behind the attacks, is a step closer to justice. Despite a thunderous bombardment of his Tora Bora mountain hideout in 2001, a 27 million dollar bounty, and a huge manhunt, Washington has failed to flush out the Saudi millionaire turned Al Qaeda terror mastermind. Bin Ladens most recent tweak at American pride came on Thursday, when the Al Jazeera network broadcast previously unseen footage of him with several of the September 11 suicide hijackers filmed before the attacks. His continuing libertypossibly in mountainous, lawless areas along the border of Afghanistan and Pakistan, has forced the Bush administration to answer embarrassing questions of how bin Laden evaded the worlds most powerful military.