WASHINGTON, Feb. 3, 2006 – Reinforced defenses within the United States, coupled with extensive antiterrorism operations overseas, have hampered terrorists' ambitions to launch a follow-up attack against the country since Sept. 11, 2001, according to the Pentagon's homeland defense chief. Paul McHale, the Defense Department's first assistant secretary for homeland security, acknowledged to civilian leaders visiting the Pentagon recently that he's surprised terrorists haven't attempted such an attack. But luck has nothing to do with it, he said. "Our power projection overseas to attack and degrade the capabilities of al Qaeda, combined with domestic security measures we have put in...