To me, this means that the court has decided that working toward the common good, the means to be decided by higher authority, is now the guiding principle of the USA. Farewell to individual rights, personal liberty and all that. Farewell to the USA, as we once knew her.
I have never in my life suffered a greater loss of faith in our government.
And there is nothing to indicate this applies to just land. They could take a dog, a cat, or a Picasso painting ("we do need items for our nice museum").