Many residents of East Palestine, Ohio, have now returned to their homes, after Norfolk Southern train derailed earlier this month and dumped more than 100,000 gallons of hazardous chemicals into the air and water.

EXPLAINED | Ohio train derailment: What could be the long-term health hazards of the disaster?

Apart from posing a threat to security, there is now a gradual shift in domestic consumption of drugs from natural to synthetic in India

Drug trafficking a challenge to India's security

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EXPLAINED | Ohio train derailment: What could be the long-term health hazards of the disaster?

Drug trafficking a challenge to India's security