The new land owners, which now happen to be the Federal Government, are saying "Get off my lawn!"
Could you show me in the US Constitution where it authorizes the US Government to own land other than the District of Columbia, military bases, post offices and post roads, and other authorized government buildings.
5th Amendment
Not hardly.
The exercise of eminent domain is for taking private property for the good of the public WITH due process.
In other words, it has to be condemned and judged and accepted as for "the public good". Then, fair compensation must be made.
