The National Transportation Safety Board has launched an investigation into a fatal Tesla crash in Texas, working alongside the National Highway Traffic Safety Administration in a dual-agency probe that signals heightened federal scrutiny of Tesla's Full Self-Driving technology. The investigation puts Tesla's advanced driver assistance systems under scrutiny, with the NTSB's interest pointing toward questions about whether Tesla's Full Self-Driving or Autopilot systems were engaged at the time of impact. Texas has become a proving ground for Tesla, which moved its headquarters to Austin in 2021 and operates its massive Gigafactory there, but the state has also seen Tesla-related incidents that drew federal attention. The NTSB has previously investigated multiple crashes involving Tesla vehicles, raising questions about the naming and marketing of features like Autopilot and Full Self-Driving, revealing a pattern of drivers misunderstanding the limitations of driver assistance technology, sometimes with fatal consequences. The NTSB has repeatedly called for stronger safeguards to ensure drivers stay engaged.