>"It’s a scam. These companies have squandered tens of billions of dollars." The quote is so truncated as to be useless. He could be talking about the goal of

>"It’s a scam. These companies have squandered tens of billions of dollars." The quote is so truncated as to be useless. He could be talking about the goal of self-driving cars or he could be talking about the amount of investment that has been taken and how it's been used.