They are federal filings. The liquids lawsuit is filed in N.D. CA.
The Federal Tort Claims Act (FTCA) requires alleging a
state tort claim according to the laws of the state in which the injury occurred. 42 USC 1983 and Bivens require alleging either a state tort (in certain respects)
or a constitutional tort.
And there are airport police involved in at least one instance. Those come under both state and federal law (in different aspects).
State torts, including all common law torts, include things like personal injury, false light, false imprisonment, assault, etc. Constitutional torts include things like violation of due process, unlawful search or seizure, prior restraint on freedom of speech, etc.
So, in short, it's complicated.
.