Guatemalan police and soldiers launched tear gas and wielded batons and shields against a group of Honduran migrants that tried to push through their roadblock early Sunday. A group of about 2,000 migrants had stopped short of the roadblock the night before. The roadblock was strategically placed at a chokepoint on the two-lane highway to Chiquimula in an area known as Vado Hondo. It’s flanked by a tall mountainside and a wall leaving the...