Venture capitalist Vinod Khosla has refused to apologize or substantiate his own claims that so-called “green energy” experiments — which have resulted in millions of dollars in lost taxpayer money — were akin to cancer research. Jason Mattera, author of the blockbuster new book CRAPITALISM: Liberals Who Make Millions Swiping Your Tax Dollars, caught up with Khosla at a conference in Washington, D.C. to ask him whether the analogy was appropriate. “When are you going to relieve taxpayers of all of these green energy boondoggles you’ve been wanting them to fund over the years?” asked Mattera. “I think the topic here is different,” answered Khosla, referring to the event he was participating in. “Do you still compare clean tech funding to cancer research?” asked Mattera. “Yes, I do,” replied Khosla. “You do? You can see how that’s wildly offensive,” remarked Mattera.