they grabbed her phone and deleted the photo..as in they physically took custody of the phone by force and deleted it or did they ask the girl to delete the photo? The former would be a crime, and I'd happily miss my flight if needed to have that addressed by actual law enforcement, the later I'd probably say ok to just placate the TSA because I'm not a moron and know it will go to the "Recently Deleted" album on my IPhone and be promptly restored.