"@russ1mitchell of LA Times wrote the article in which he claimed that NHTSA launched investigation into Tesla fires, later changing “investigation” to probe.
This is FALSE. NHTSA initiated analysis of the Petition and rebuked Russ Mitchell for disinformation."
Yes, which is not an investigation. They're only conducting an analysis of the petition and asked Tesla for data. They have not opened an investigation, but you already know this if you're listening.
I also dug more into this and the Twitter thread contains the most factual info instead of speculation.