The web site CriminalDefenseLawyer.com paraphrases one state's law as follows. I have hi-lighted the sections I think apply to the TSA screenings:
In n Pennsylvania, sexual battery is codified in the law as indecent contact. According to the laws of Pennsylvania;A person who has indecent contact with the victim or causes victim to have indecent contact with the person is guilty of indecent assault if:
- the person does so without the complainant's consent;
- the person does so by forcible compulsion;
- the person does so by threat of forcible compulsion that would prevent resistance by a person of reasonable resolution;
- victim is unconscious or the person knows that the victim is unaware that the indecent contact is occurring;
- the person has substantially impaired the victim's power to appraise or control his or her conduct by administering or employing, without the knowledge of the victim, drugs, intoxicants or other means for the purpose of preventing resistance;
- the victim suffers from a mental disability which renders him or her incapable of consent;
- the victim is less than 13 years of age; or
- the victim is less than 16 years of age and the person is four or more years older than the victim and the victim and the person are not married to each other.