The Army veteran who drove a truck through a crowd in New Orleans and the Special Forces master sergeant who exploded a Tesla Cybertruck in Las Vegas last week briefly overlapped in their service at Fort Liberty,

Matthew Livelsberger -- the driver of the Tesla Cybertruck that exploded outside the Trump International Las Vegas Hotel -- shared "grievances" in two letters.

Many of the latest cars not only know where you've been and where you are going, but also have access to your contacts, your call logs and your texts.