The president authorized the military to assist in deportations. The planes triggered a crisis between the United States and Colombia, and prompted questions. Here’s what to know.

U.S. President Donald Trump’s military deportation flight to Guatemala on Monday likely cost at least $4,675 per migrant, according to data provided by U.S. and Guatemalan officials. That is more than five times the $853 cost of a one-way first class ticket on American Airlines from El Paso,