Nexus fingerprinting

Well..got my stitches out on Monday the 10th. Then Tuesday had to go for a Nexus interview. They have this real cool digital fingerprinter. They need pictures of all 4 fingers of each hand. It lites up when the pressure is correct. I had to take off my bandage. Lucky the tip was ok...or I'd have been out of luck. They also scan your retina. supposedly it will speed up air travel between US and Canada. But I was warned not to screw something up on any declaration or I'd be banned forever...and NEVER get another one! It kinda was very uncomfortable pushing on my broken finger...but I didn't want to wait and come back.