federal law applies on all federal and tribal lands....native american graves and protection and rpatriation act...washington law applies on all other lands....kennewick man was found on federal land...read the statutes to find out why the corps did what they did...

the hood canal bridge project was stopped when a large(possibly the largest in the NW) village site was unearthed...

carbon dating is used mainly to determine age of things that were once living...not rocks and such...the carbon they look at doesn't accumulate until an animal/plant dies...and it is pretty darned accurate when used on appropriate material....

protections for all historical sites and graves are important....native and non native....
do you really want disney to build a theme park at gettysburg??