I think it will be from from Tom Bradley but I dont know for sure. The line is "generic" no matter which airline you are on for the xray. After you get them xrayed and tagged then you are off to check in with your airline.

Wendy Americans have to clear customs in LAX and therefore collect their bags. I am not sure if you are continuing on to Canada if you can just check all the way through. GOOD question. I dont know the answer.