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Back in August I wrote a post covering a rash of reports on the worrying rise of bad science in TED talks. A couple of months later TED pulled the following TEDx talk after the neuroscientist Bradley Voytek posted a question about it to Quora: "Is Randy Powell saying anything in his 2010 TEDxCharlotte talk or is it just total nonsense?". The top voted response was from Stanford theoretical physicist Jay Wacker and began:

Here's some bad news for those of you who like to think you can think rationally about risk. You can't. You know all those thoughtfully considered views you have about nuclear power or genetically modified food or climate change? They are really no more than a jumble of facts, and how you feel about those facts. That's right. They're just your opinions. Which is bad news, because no matter how right you feel, you might be wrong. And being wrong about risk is risky, to you AND to others.

Summary:  Sharks often use the "bump and bite" attack:  The shark tests its prey by repeatedly bumping it.  If the prey gives no dangerous response, the shark begins its attack - biting the prey repeatedly and viciously.  It works for sharks, as it has worked for our leaders.  Now the bumping phase ends and the attack begins. Attorney General Eric Holder explains the new order.

The eminent British scientist James Lovelock, back in the 1970s, formulated his theory of Gaia, which held that the Earth was a kind of super organism. It had a self-regulating quality that would keep everything within that narrow band that made life possible. If things got too warm or too cold-if sunlight varied, or volcanoes caused a fall in temperatures, and so forth-Gaia would eventually compensate. This was a comforting notion. It was also wrong, as Lovelock himself later concluded. "I have to tell you, as members of the Earth's family and an intimate part of it, that you and especially civilization are in grave danger," he wrote in the Independent in 2006.