by Veronique DUPONT LOS ANGELES, United States (AFP) — The deadliest mass shooting in US history has once again unleashed gun control advocates clamoring for curbs on weapons sales. But the Florida carnage also shows the scale of their challenge in a country where a 29-year-old once flagged on an FBI watchlist was able to commit mass murder with a legally-bought assault rifle. As has become a somber ritual after each of the mass shootings […]