From Wall Street Journal:
U.S. counterterrorism officials say 2009 has turned into the year of homegrown jihad, with the unmasking of the most serious suspected terror plots involving Americans in about five years.
U.S. investigators are still trying to determine what drew five young Americans to travel last month to Pakistan, where local authorities allege they had sought to join extremist groups that have attacked U.S. soldiers in Afghanistan. U.S. investigators have interviewed some of the men, but haven't verified the information Pakistani officials have released on the case.
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My Comment: The ones who are voicing this fear the loudest are America's Islamic leaders .... Arrest of US terror suspects 'wake up call': imam.
They are finally waking up to the threat that exists within some members of their flock.