Several Paris attackers were on U.S. watchlists: officials

At least four of the Paris attackers were listed in a central counter-terrorism database maintained by the U.S. intelligence community, five U.S. officials said on Thursday.
At least one and possibly more of the attackers was also on a more selective U.S. "no fly list", three of the officials said, though they would not provide a specific number.
http://www.reuters.com/article/2015/11/20/us-france-shooting-watchlists-idUSKCN0T900N20151120#mbwmEl6ZhevOohC2.97