By definition terrorism is psychological. Its effect is overwhelming in a free capitalist society (as much as France is). The west needs to remind itself that it is Christian. It has spent 100's of years keeping the Mohammedans out, for good reason. To let them in is certain disaster, and the end of western civilization. The only solution is ending welfare for muslims and mass deportations. The EU must also make huge investments in controlling its borders and boat traffic in the Mediterranean to deny these infiltrators entry.