constant. officials in new york say since this past spring, there's been 40 propaganda posters. while the death of baghdadi may fuel cause for retaliation, the counter terrorism measures are in place. blocker vehicles to prevent cars from driving in crowds and bomb sniffing dogs will be out working giving more attention to subway stations. o'neal says the most difficult is alone wolf. in some years, lone wolf attacks have been carried out like the attack on the west side highway in 2017 when a man drove a rented pickup to cyclists. police stymied bombing attempted in 2009, 2010 and it was in 2015. >> this is a product of what you're talking about. people following this propaganda