Mali and Burkina Faso have said they are imposing a travel ban on US citizens in response to an equivalent measure announced by the Trump administration earlier this month. In separate statements issued by their foreign ministries late on Tuesday, the two West African countries said they were acting in the name of “reciprocity” after the White House announced on December 16 that US President Donald Trump was adding them and five other countries to a list of those subject to a full travel ban. The White House said the expanded ban, set to take effect on January 1, applied...