Not satisfied with fumbling through Americans’ private possessions, one TSA screener saw fit to make a humiliating joke about the contents, writing a personal message on a TSA inspection note after finding a sex toy in writer Jill Filipovic’s luggage.

After arriving at her hotel, Filipovic was unpacking when she discovered her bag had been individually searched by a TSA screener who, having seen the “personal item,” saw fit to comment, writing “GET YOUR FREAK ON GIRL” on the reverse side of an inspection notice...