CARACAS, Venezuela (AP) — The United States often takes a leading role in calling out the world's most dangerous places, warning its people about the risks of traveling to countries that are at war, under terrorist threats, experiencing civil unrest or displaying significant anti-American sentiment.

The latest mass shootings have triggered a sharp role reversal, with three countries warning their citizens about the risks of traveling to the U.S.

Venezuela, Uruguay and Japan issued warnings to varying degrees following the deaths of 31 people over the weekend in Dayton, Ohio, and El Paso, Texas...