would never know about it, never see. yeah, they have to take that into consideration. on the other hand, uf a great police department, nypd. all the help they need they'll get from. to la they're able to help go through witnesses, interviews, look at videotapes. they will be able to bear an enormous amount of resources to bear immediately and already have, no doubt. that helps in the situation. but yeah, the building clearing of a hospital and properly neighboring buildings is quite an undertaking and will take some time. >> if you're just joining us, you're looking at images in new york city north of manhattan in