Unless it can be stopped, Connecticut is about to get rolled by the U.S. Bureau of Indian Affairs. Gov. Dannel P. Malloy is so angry about this that he hand-delivered a letter about it to President Obama last week. Everyone ought to be angry.

The BIA is preparing new rules — or watering down its old rules — on tribal recognition. If the rules are approved, three putative tribes that have been denied federal recognition in the past — the Eastern Pequot of North Stonington, the Golden Hill Paugussett of Colchester and Trumbull and the Schaghticoke of Kent — will be eligible to try again, under much less exacting standards.

If they win recognition, the result will be "devastating" to Connecticut, as Mr. Malloy told the president. These "tribes" have filed or threatened land claims to large swaths of fully developed land in Connecticut, claims that can cloud titles to property. Recognition will require the state to set aside trust lands, taking property off the tax rolls.