Letters to Sen. Ed Markey: six autonomous vehicle companies say remote assistants don't directly control vehicles; Tesla says its operators are allowed to do so (Aarian Marshall/Wired)

Aarian Marshall / Wired: Letters to Sen. Ed Markey: six autonomous vehicle companies say remote assistants don't directly control vehicles; Tesla says its operators are allowed to do so — The electric-car maker says it happens rarely and at speeds below 10 mph. But the disclosure—in response to a US senator's questions …