Migrants in Tijuana feel squeeze from both sides of U.S. border

U.S. President Donald Trump has sent almost 6,000 troops to fortify the U.S-Mexico border, and has threatened to close the frontier entirely to keep out the migrants.In addition, an order issued by Trump means migrants must now present themselves at U.S. ports of entry, such as the Mexican border city of Tijuana, to have any chance of qualifying for refugee status.City authorities say around 2,000 migrants are now in Tijuana, where some residents have not taken kindly to the arrival of the Centr