John McCain recently tried to underscore his seriousness about pushing through a new energy policy, with a strong focus on more drilling for oil, by telling a motorcycle convention that Congress needed to come back from vacation immediately and do something about America’s energy crisis. “Tell them to come back and get to work!” McCain bellowed. Sorry, but I can’t let that one go by. McCain knows why.

It was only five days earlier, on July 30, that the Senate was voting for the eighth time in the past year on a broad, vitally important bill — S. 3335 — that would have extended the investment tax credits for installing solar energy and the production tax credits for building wind turbines and other energy-efficiency systems.

Both the wind and solar industries depend on these credits — which expire in December — to scale their businesses and become competitive with coal, oil and natural gas. Unlike offshore drilling, these credits could have an immediate impact on America’s energy profile.

Senator McCain did not show up for the crucial vote on July 30, and the renewable energy bill was defeated for the eighth time. In fact, John McCain has a perfect record on this renewable energy legislation. He has missed all eight votes over the last year — which effectively counts as a no vote each time. Once, he was even in the Senate and wouldn’t leave his office to vote.

Some people will instantly ask: why bother criticising religion if it causes so much hassle? The answer is: look back at our history. How did Christianity lose its ability to terrorise people with phantasms of sin and Hell? How did it stop spreading shame about natural urges – pre-marital sex, masturbation or homosexuality? Because critics pored over the religion's stories and found gaping holes of logic or morality in them. They asked questions. How could an angel inseminate a virgin? Why does the Old Testament God command his followers to commit genocide? How can a man survive inside a whale?

Reinterpretation and ridicule crow-barred Christianity open. Ask enough tough questions and faith is inevitably pushed farther and farther back into the misty realm of metaphor – where it is less likely to inspire people to kill and die for it. But doubtful Muslims, and the atheists who support them, are being prevented from following this path. They cannot ask: what does it reveal about Mohamed that he married a young girl, or that he massacred a village of Jews who refused to follow him? You don't have to murder many Theo Van Goghs or pulp many Sherry Joneses to intimidate the rest. The greatest censorship is internal: it is in all the books that will never be written and all the films that will never be shot, because we are afraid.