Four extremists Paris earlier in sight

US intelligence had at least four militants involved in the attacks in Paris already in sight.

Additionally stood at least an extremist on a so-called ' no fly list', according to officials. The names of the perpetrators of the attacks were in the database Terrorist Identities Datamart Environment (TIDE), a list of potential terror suspects. Their names ended up there after European authorities had shared information with the United States. What four militants on the list, was not disclosed.