Federal authorities unsealed indictments against the operators of some of the world’s largest online gambling sites and moved Friday to seize their U.S domains. The U.S. attorney in Manhattan, Preet Bharara, charged Isai Scheinberg, the founder of PokerStars, and Raymond Bitar, the founder of Full Tilt Poker, and nine others of fraudulently scheming to thwart a 2006 antigaming law that prohibits U.S. banks from processing internet wagers and payments. The indictments seek the return of $3 billion in allegedly ill-gotten gains. The charges come amid renewed efforts to legalize online gaming in the United States, and as U.S. authorities increasingly invoke asset-forfeiture ...