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Conway Gittens: I’m Conway Gittens reporting from the New York Stock Exchange. Here’s what we’re watching on TheStreet today.

It’s a mixed bag on Wall Street. Netflix provided a lift for the Nasdaq. The streaming leader topped forecasts and added more subscribers than predicted. The Dow, however, is under pressure due to American Express. The credit card company beat profit targets and guided full-year estimates higher but sales came in lighter than anticipated.

Related: Elon Musk unveils Cybercab robotaxi, Robovan and Tesla Bot

Turning to other headlines – The safety of Tesla’s so-called Full Self-Driving system is being put under the microscope at the National Highway Traffic Safety Administration after 31 fatalities. One death in particular involved a pedestrian who was killed by a Tesla driver with the system fully in use.

According to the records posted on NHTSA’s website, the new probe will focus on, among other things, “The ability of FSD’s engineering controls to detect and respond appropriately to reduced roadway visibility conditions; whether any other similar crashes have occurred in reduced roadway visibility conditions and, if so, the contributing circumstances for those crashes.”

Right now, FSD is not fully autonomous and is supposed to be supervised by the driver. The agency wants to know how FSD responds to conditions when visibility is low due to natural occurrences like fog and sun glare.

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The early-stage probe extends into the over-the-air software updates used by Tesla. The agency wants to know the efficacy and the safety of such updates.

This NHTSA investigation covers 2.4 million Teslas currently driving on U.S. roads, including the new Cybertruck.

That’ll do it for your Daily Briefing. From the New York Stock Exchange, I’m Conway Gittens with TheStreet.

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