The Department of Homeland Security is investigating Mt. Gox, the largest Bitcoin exchange, for violating laws on US money exchange and money transfers—and it’s grabbing the exchange’s money in the process.

DHS officials refused to comment on the ongoing investigation, but they did provide a copy of the warrant that was used yesterday to seize funds that Mt. Gox had in Dwolla, a money transfer service. Dwolla is a Des Moines, Iowa company that provides one of the most popular ways to move US dollars to Mt. Gox, where they can be used to buy bitcoins.

via Feds reveal the search warrant used to seize Mt. Gox account | Ars Technica.