by Allison Dinner © Agence France-Presse Uvalde, UNITED STATES (AFP) — A teenage gunman killed at least 19 young children and two adults at an elementary school in Texas on Tuesday, prompting a furious President Joe Biden to denounce the US gun lobby and vow to end the nation’s cycle of mass shootings. The attack in Uvalde — a small community about an hour from the Mexican border — was the deadliest US school […]