There is nothing sacred about private property. You see the beginnings of it in our legal system per what was passed to our "founding fathers" per English philospher John Locke. No one ever complete owns anything physical in an unqualified sense.
Since than it has been a contentious issue. I must agree with a previous poster that your rights end when you begin to infringe upon the rights of others. This is pretty much a given in American society. Sometimes legally you can advance you own self interest at the expense of others, but don't expect them to applaude you for it. For example if you drill a well on your sacred one acre of land and begin pumping the aquafer dry to fuel your water bottling plant, don't expect all the surrounding landowners to acquiesce when their wells go dry.
Full recent piece on private property issues at: http://www.fightingbob.com/weblog.cfm
"Recently the U.S. Supreme Court infuriated nearly all Americans with a 5-4 decision that permits the use of eminent domain, by a governmental body, to take private property for private development. (In many ways, this is nothing new. In Detroit, Poletown was razed by the city to make way for a General Motors factory.) People are outraged. In a New Hampshire poll 89 percent of Democrats, 90 percent of Republicans and 93 percent of independents oppose the court ruling."
If all the atheists left the United States it would lose 93% of the National Academy of Sciences but less than 1% of the prison population.