members of the nypd bomb squad who removed and disarmed the chels b detectives jason halleck and timothy brady were the primary technicians that night. in a perfect world it never goes off and you've got evidence, right? is that the main goal? >> that's our ultimate goal. it doesn't always work the way we planned. we have to change up our plan. >> you're working against the clock in case like that? >> well, you could be. you don't know if it's timed. you don't know if it is timed, what the time is. so you want to get everybody out as quick as possible. city, so it's very difficult to clear an entire area. that's why we removed it from the scene and brought it to a safer scene for our own facility. >> to do that, they used a robot and a special containment vehicle to cart the still live device to a remote police facility. and that's where halleck had to get up close. >> what is that like when you're face to face with what you are strongly believe is an explosive device? >> one remission, i just don't think about it, i'm so focused on what it is and completing it and finishing it. >> to give an