pride parade, everything that happens in this condensed island of manhattan. so, what is the first line of defense then? is it checking who is renting every hotel room? >> i mean that's impossible. talk about in new york city where we have tall residential buildings. people live there. they're not going in and out. new york city has a problem tonight. you have the first playoff game in the bronx at yankee stadium. they didn't have a lot of time to plan this. >> you're worried about copycats too. when we say the largest mass shooting in modern american history, you hear something tempt to go a twisted individual. >> absolutely. i a he very concerned about that. there's somebody out there saying i'm going to top that. we want to tone it down a little bit. it's a very important aspect we need to discuss but also be dareful abo careful.