The United States will face worse attacks than those on Sept. 11, 2001 if it does not heed al Qaeda demands effectively allowing the group control over Muslim countries, a U.S. Islamist militant said on Tuesday. Adam Gadahn, a California-born convert to Islam and the first American to be charged with treason since the World War Two era, appeared in a video posted on the Internet. Gadahn, wearing robes and a turban, is believed to be in Pakistan. Full Story