Buffett’s 167-Year-Old Railroad Tests Drone Inspections

BNSFBNSF Railway Co. is flying drones as far as 150 miles (240 kilometers) along the New Mexico desert to inspect tracks, helping the Federal Aviation Administration develop rules for operating unmanned aircraft beyond the pilot’s line of sight. That’s an essential step for expanding use to such commercial endeavours as deliveries by Amazon.com Inc. and other companies. Continue reading