The only terrorists in this and similar scenarios is the federal government who illegally and unconstitutionally hold state lands. Unconstitutional federal acts are acts of tyranny.
Art I, Sec 8, Cl 17 of the U.S. Constitution makes it clear that the feds may hold land in a state IF
1) the purpose for the land is for NEEDFUL federal buildings like forts or dock-yards and
2) the feds purchased the land after the state legislature consents
Most federal lands do not meet this test and should, therefore, transfer back to the states either willingly or by state commandeering the lands.
“Feel good” National Parks, for instance, are unconstitutional. Notice that unconstitutional federal acts, like National Parks, no matter how good it feels at the time, can turn ugly at any time, because tyranny never remains benign.
Government by nature is not a benign agent. Government is at its core is an agent of force. That is why the federal government must be ruled and limited by the Constitution, the Supreme Law of the Land.
They are held under a trust.
That is how they got around the constitution. But, they (the Feds) have failed that trust and the trust can and should be handed back to....the states, or better yet, the local areas control.