The US Commodity Futures Trading Commission (CFTC) filed a lawsuit against the company, arguing that it violated US trading laws.

BBC: Intrade shuts amid investigation

Intrade is cutting off its US customers after the Commodity Futures Trading Commission (CFTC) sued the Ireland-based company for violating US law.

FORBES: CFTC's Intrade Shutdown: Don't They Have Better Things To Mither About?