hey preferred bookstores or hookah bars to mosques. They stopped listening to pop music and instead surfed Web sites promoting radical Islam. They threw away their baseball caps and grew beards.

New York Police Department intelligence analysts have concluded those were some of the telltale signs of homegrown terrorists in the making -- a mounting threat as grave as that from established terror groups like al-Qaida.

An NYPD report released Wednesday warns of a "radicalization" process in which young men -- otherwise unremarkable legal immigrants from the Middle East -- grow disillusioned with life in America and adopt a philosophy that puts them on the path to jihad.

"Hopefully, the better we're informed about this process, the more likely we'll be to detect and disrupt it," Police Commissioner Raymond Kelly said while presenting the findings at a briefing of private security executives at police headquarters.

The findings drew swift criticism from an Arab anti-discrimination group, which accused the NYPD of stereotyping and of contradicting recent federal warnings that the chief terror threat remains foreign. [Link]