U.S. State Department has travel information for Olympics in South Korea
The U.S. Department of State has information and resources to help insure a safe and enjoyable time for U.S. citizens traveling to the 2018 Winter Olympic and Paralympic Games in PyeongChang, South Korea, in February and March.
Travelers can take advantage of the Smart Traveler Enrollment Program (STEP) for updates on important safety and security announcements, and to help the U.S. Embassy make contact in case of an emergency.
Other information includes a list of items prohibited or restricted in South Korea, including prescription drugs and non-prescription health supplements.
Details: travel.state.gov
http://triblive.com/lifestyles/travel/13135750-74/us-state-department-has-travel-information-for-olympics-in-south-korea