Entergy Corp., the second-largest U.S. nuclear-power generator, is facing new opposition to its Buchanan, New York, plant: Paul Tudor Jones and other hedge-fund managers are joining environmentalists who want the facility closed. Sept. 11 showed the threat of a terrorist attack on the Indian Point reactors is too great, given their location near 20 million people in the New York City region, Jones said in a speech this week before analysts and investors a block from the World Trade Center site. The plant should be shut within five years, said Jones, who manages $8 billion. Financial support from hedge-fund managers...