Via WSJ:

The U.S. unveiled more of its Winter Olympic uniforms Thursday, but officials are cautioning athletes to keep theirs under wraps outside the games’ venues.

A memo sent to athletes by the U.S. Olympic Committee cautions them to avoid wearing team colors too prominently in Sochi amid heightened concerns about security in the southern Russian resort town.

“The U.S. Department of State has advised that wearing conspicuous Team USA clothing in non-accredited areas may put your personal safety at greater risk,” says the memo, which was reviewed by The Wall Street Journal.

The memo details other steps that athletes can take to ensure their safety while in Sochi, including enrolling in a State Department traveler program.

Greg Bretz, a snowboard half-pipe rider preparing for his second Olympics, said in an interview Thursday that U.S. Olympic officials “have told us not to wear our USA gear outside of the venues,” but added, “I have so much faith in the United States and our safety that I’m not too worried about it.”

Officials caution athletes about safety at each Olympics, but the warning about Team USA gear seemed new to Bretz, who also competed four years ago in Vancouver and said he received no such warning then.