Tracii - Just because you seem to have a problem with your neighbor, you should not demonstrate personal bias against an entire department and judge 47,000 people based on your experience with one. Last year, the TSA inspected over 721 million passengers and airline employees. Only a fraction of a percent made complaints. Most people are treated respectfully and recognize the need for security in a world vulnerable to terrorist attacks. Most rudeness, condescending attitudes and inconsiderate behavior in our airports are demonstrated by passengers who are non-cooperative, hostile or intoxicated, not TSA agents, federal marshals or law enforcement officers.
TSA has successfully deterred or prevented any hijacking in our 450 US airports since 4 aircraft were easily hijacked on September 11, 2001. Last year, at airport screening alone, they intercepted over 2,600 firearms (almost 7 a day) as well as countless knives, explosive devices and hazardous materials. This in spite of well-publicized screening procedures and warnings.
The TSA does, in fact, have detailed policies and procedures, most of which are transparent and well-publicized. They do not yet have published transgender policies, as Paula points out. The people I know who have travelled en femme have had no problems going through security, but most people do not feel comfortable going through intense screening in heels and a dress. If pat downs are required, however, all passengers can request a search by a gender-specific agent as well as a search not in public view - always with additional agents, typically with supervisors present.
TSA does dismiss employees for performance. If your neighbor, or any other TSA personnel, treat passengers poorly for any reason, they should be disciplined and are subject to dismissal.