"Federal authorities are taking .com, .org. and .net domains under the same civil-seizure law the government invokes to seize brick-and-mortar drug houses, bank accounts and other property tied to alleged illegal activity. The feds are able to seize the domains because Verisign, which controls the .net and .com names, and the Public Interest Registry, which runs .org, are U.S.-based organizations. Under civil forfeiture laws, the person losing the property has to prove that the items were not used to commit crimes."
–Feds Seize 307 Sports-Related Domains Ahead of Super Sunday | Threat Level | Wired.com