Waymo faces a slew of challenges if it's going to get its autonomous taxi service up and running, not the least of which is insurance. Who's going to cover passengers when there's no human pilot to help determine who's responsible? Thankfully, someone has stepped up to the plate. Waymo has struck a deal with insurance tech startup Trov to protect passengers when the service goes live in Phoenix in 2018. Trov has adapted its on-demand insurance to be triggered by software instead of a human, giving you automatic coverage during your trip without having to pay extra or even acknowledge that the policy is taking effect.