“A senior fellow with ATFP is Hussein Ibish, who from 1998-2004 served as Communications Director for the American-Arab Anti-Discrimination Committee, and from 2001-2004 was Vice President of Sami Al-Arian’s National Coalition to Protect Political Freedom.” http://www.discoverthenetworks.org/groupProfile.asp?grpid=6621
I don't know if the name Tareq has any significance, but it could just be an alternate spelling of Tariq. Tariq Aziz was one of Saddam Hussein's top officials, and he is an Iraqi Christian.
So this should make the controversy go away. After all, this means they must have been invited, right?