Supreme Court justices expressed serious doubts Tuesday whether the Court has the authority to protect some residents in New London, Conn., who face losing their homes to the city’s ambitious program for economic revitalization.

Susette Kelo and several other homeowners filed a lawsuit after city officials announced plans to bulldoze their residences to clear the way for a riverfront hotel, health club and offices. The residents refused to move, arguing it was an unconstitutional taking of their property.