text:  Armored vehicles rammed into the doors of Bolivia's government palace as troops unleashed tear gas on protesters who flooded the streets. The protests came as President Luis Arce said the country faced an attempted coup and urged people to mobilize. A Bolivian general, Juan Jose Zuniga, was arrested after the apparent coup attempt failed. Arce faced down General Zuniga outside the presidential palace as it became clear that the coup had no meaningful political support.