By Bassem Mroue Associated Press BEIRUT (AP) — A massive explosion rocked Beirut on Tuesday, flattening much of the port, damaging buildings across the capital and sending a giant mushroom cloud into the sky. At least 50 people were killed and 2,700 injured, with bodies buried in the rubble, officials said. Hours later, ambulances still carried away the wounded as army helicopters helped battle fires raging at the port. The sudden devastation overwhelmed a country already struggling with both the coronavirus pandemic and an economic crisis: Beirut hospitals quickly filled beyond capacity, pleading for blood supplies and generators to keep […]