Federal prosecutors have revealed that there was a fourth man in the United States connected to a 2009 al Qaeda-sanctioned plot to blow up subway lines in New York City.

Officials last week quietly revised the indictment against one of the conspirators, Adis Medunjanin, alleging that he � along with former high school classmates Najibullah Zazi and Zarein Ahmedzay � tried to recruit someone identified only as �John Doe� to travel to Pakistan �to wage violent jihad.�

It�s the first time prosecutors indicated there was a fourth person in the United States linked to what may have been the most legitimate terror plot since 9/11.

Now Medunjanin�s attorney, Robert Gottlieb, wants Brooklyn federal prosecutors to unveil the identity of the mystery man before he turns up as a possible witness at a trial set for March.

(Source: NY Post)