42 USC § 1983
Every person who, under color of any statute, ordinance, regulation, custom, or usage, of any State or Territory or the District of Columbia, subjects, or causes to be subjected, any citizen of the United States or other person within the jurisdiction thereof to the deprivation of any rights, privileges, or immunities secured by the Constitution and laws, shall be liable to the party injured in an action at law, suit in equity, or other proper proceeding for redress, except that in any action brought against a judicial officer for an act or omission taken in such officer’s judicial capacity, injunctive relief shall not be granted unless a declaratory decree was violated or declaratory relief was unavailable. For the purposes of this section, any Act of Congress applicable exclusively to the District of Columbia shall be considered to be a statute of the District of Columbia.
When TSA along with elected officials and other government employees start getting these lawsuits that hold them personally responable they will stop ignoring your constutional rights. If a TSA agent gets hundreds plus lawsuits for sexually assaulting you (a violation of your 4th amendment rights) they will give it up. If 100s of people file the federal lawsuits they will stop violating your rights. It will cost about $150 filing fee to file a lawsuit against a government employee.
I believe this will be a good first step. If lawsuits are filed on elected officials and law enforcement there is a good chance things will change. If hundreds of suits are filed on the same employees they might get the picture.