More details:
http://www.newsday.com/news/local/newyork/nyc-secu1009,0,3889663.story
-snip-
With a security clampdown in the city's subway system continuing indefinitely, a city official said Saturday that three men arrested in Iraq in connection with a suspected terrorist plot were believed credible because they are not low-level insurgents, are well-connected outside of their country and had traveled abroad.
The three men, whom authorities have not identified and who are being questioned by U.S. forces, were believed to have planned to leave Iraq and travel through Syria to arrive in the United States on Friday and deliver a London-like bombing on or around Sunday, said the official, who spoke on the condition of anonymity.
-snip-
Little was known about a fourth person who officials said may be in the New York City area, having entered the country from Syria. It remained unclear if the person actually exists.
" they are not low-level insurgents, are well-connected outside of their country and had traveled abroad. "
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Very interesting!
Big question is how important were they to the plot being successful? If they were leaders of cells, we are in business... if they just taught how to make bombs, we could still have some trouble.