A U.S. citizen, identified as a Russian woman, has been arrested in Moscow on charges of smuggling a firearm. According to Russian officials, a Colt Commander .45 caliber pistol and three empty magazines were discovered in her luggage upon arrival. The circumstances surrounding the incident remain unclear, and the U.S. embassy has been notified. Further investigation is underway to determine the full details of the alleged smuggling operation and the individual's intentions.