Too much conspiracy?
Wherever you turn these days there are conspiracy theories.
Recently Newsnight broadcast a piece by the film-maker Shane O'Sullivan pointing to new video evidence that three CIA agents were present on the night of Bobby Kennedy's assassination. That generated loads of earnest debate across the web. Then we've had the assassinations of Pierre Gemayel and Alexander Litvinenko, and theories abound. Lord Stevens' report into the much-theorised death of Princess Diana is due any day, and almost every day new emails and attachments land in our in-boxes pointing to apparent discrepancies in the official version of 9/11, with titles like The South Tower Napalm Bomb Seventh View.
While the conspiracy theory has long been with us, the internet has allowed it to become an exploding and intriguing growth industry. But how much of this stuff should we report?
When Shane came to us saying he thought he had new evidence in the Bobby Kennedy case of course my first reaction was "oh yeah", but when he showed me the video of the three alleged CIA agents, and the testimony of former colleagues who positively identified them, I was convinced the material at least raises new questions - without buying into a grand theory which explains exactly what happened.
Last night an amateur film-maker spoke to me about his belief that there's been a huge cover-up in the official reporting of both 9/11 and 7/7. Why, he asked, doesn't the BBC report the many discrepancies and oddities surrounding the accounts of these hugely significant events?
The reason we haven't gone deeper is that there's surely no rational explanation for the attacks other than that they were carried out by two groups of Islamist terrorists, however puzzling some of apparent inconsistencies.
But I would say that the fact a conspiracy theory surrounds a story should never be a reason either to run with it or reject it. Take, for example, the stories of white phosphorous at Fallujah and Dan Brown's Da Vinci Code. One true, one rubbish. But it would be a big mistake to make up your mind until you've had a look.