The 10th US Circuit Court of Appeals ruled on Friday that concealed carry permits are not protected by the second amendment.
The three judges cited a Supreme Court decision that "the right of the people to keep and bear arms is not infringed by laws prohibiting the carrying of concealed weapons."
The case was originally brought by Washington state resident Gray Peterson against the city of Denver and Colorado's Dept of Public Safety, who had denied him a concealed weapons permit because he wasn't a state resident. He claimed the denial violated his right to bear arms.
Colorado wouldn't honor Peterson's concealed carry permit from Washington, because CO only honors permits from states that recognize CO permits, and WA isn't among them. Friday's ruling upholds the state's right to ignore Washington permits.