Back in the United States, the Transportation Security Administration is defending its treatment of a transgender woman who says she was detained for 40 minutes at Orlando International Airport, harassed, repeatedly patted down and instructed not to record the ordeal, all because a full-body scanner flagged her penis as an “anomaly.” Shadi Petosky, who live-tweeted the incident Monday, ended up missing her flight. Advocates say transgender people are often subjected to invasive airport screening. When passengers go through a full-body scanner, TSA agents calibrate the scanners “male” or “female” based on their perception of the passenger. Genitalia that doesn’t conform to the scanner’s standards for that sex may be flagged. At one point, Petosky said an agent “told me to get back in the machine as a man or it was going to be a problem.” The TSA says its agents followed agency guidelines.