we have also had deadly vehicle attacks in paris, sweden, berlin, and don't forget in this country lasto state student of somali descent plowed his car into a crowd of students and then stabbed him with a butcher knife, injuring 11. if the suspect shot and killed. of course the deadliest vehicle attack happened in july of 2016 in nice, france, when a tunisian national drove a large truck through a crowd of people celebrating bastille day, killing 86, injuring more than 500. recently, and isis magazine included an article that showed the best kinds of vehicles to use for attacks. it even suggested that sympathizers rent them, which caught the attention of new york police. watch. >> we went did extensive outreach to the truck rental business. we visited over 148 truck rental locations in this area, the obvious ones u-haul, writer, home depot, et cetera. >> of course police say today's attacker used a home depot rental truck, al qaeda has many times called trucks the ultimate mowing machines. >> martha: thank you. if peer with more tonight, karl rove, former deputy chief of staff to presid