A speeding and severely overcrowded passenger bus careened off a highway and plunged into a rocky ravine in southwestern Pakistan early Friday morning. The catastrophic crash killed 40 passengers and injured eight others, making it one of the country's deadliest transit accidents in recent years.According to Shahid Rind, a spokesperson for the Balochistan provincial government, the disaster occurred in Dana Sar, a remote mountainous region bordering Balochistan and Khyber Pakhtunkhwa provinces.T...