The 3 biggest risks facing self-driving cars

We're about a month away from Tesla's launch of the Model 3, a $35,000 all-electric car for the masses - if the carmaker is to be believed about its scheduling.

The Model 3 will be fully equipped with Tesla's Autopilot semi-self-driving technology, an indication that the company thinks electric-plus-autonomous is the wave of the future.

But just as electric cars have failed to gain much traction in the global auto market, the jury is out on whether self-driving cars will catch on.

Here's are the three biggest risks: