NHTSA opens a probe into Tesla’s Full Self-Driving, covering 2.4M vehicles, after four reported crashes in low-visibility situations, including one fatal crash (Akash Sriram/Reuters)

Akash Sriram / Reuters:
NHTSA opens a probe into Tesla's Full Self-Driving, covering 2.4M vehicles, after four reported crashes in low-visibility situations, including one fatal crash  —  The U.S. auto safety regulator said on Friday it has opened an investigation into Tesla's Full Self-Driving software after reports …