I believe the Glik case hinges in regard to the purported "secretive" nature of the cellphone recording; if you have your cameraphone obviously recording at the checkpoint (and are not 'interfering' with the screening process ) you are all right even in MA.

It might be fun to record the people in front of you as they are chatted up by the BDO. It will pretty much guarantee you the patdown though in my experience. I have been selected 100% for cancer box at BOS in past 3 months. It gives me a nice conversation starter, "did you hear about the cancer cluster that was seen in your airport's TSA agents?"