Three countries have issued warnings urging their citizens to exercise caution while traveling in the United States, following a series of police shootings of black Americans and sometimes violent protests in response. The Middle Eastern nations of Bahrain and the United Arab Emirates recommend avoiding crowds to stay safe; the Bahamas advises young black males to "exercise extreme caution . . . in their interactions with the police."
The U.S. regularly releases such advisories. In this month alone, the government has warned us about Bangladesh, Venezuela, Iraq, and Mali. It's rare, though, for the U.S. to be on the receiving end—a measure, perhaps, of the degree of turbulence in the nation at the moment.