Washington, D.C., enacted new gun-control laws after the US Supreme Court in 2008 invalidated its previous gun ordinance. On Friday, a federal judge upheld the new rules, though the decision is expected to be appealed.
Federal appeals court reverses an order that the 17 men be released into the US.
That's a key question in the case of 17 Chinese Muslims held at Guantánamo, which a federal appeals court panel takes up Monday.
The Justice Department says the judiciary does not have the power to release Guantánamo detainees into the US.
The Bush administration hopes to block the judge's order to free the 17 Uighurs, who were detained in Pakistan almost seven years ago.