The David Kelly programme in BBC2's "Conspiracy Files" series was much more sympathetic to the "conspiracy theory" which it was examining than the "Diana" or "9/11" programmes.

This obviously gives rise to a "conspiracy theory" about the series itself: maybe the intention was to run a series of programmes about currently popular "conspiracy theories" and debunk them all except in the case of the David Kelly story.

That would make quite a lot of sense given the history between the BBC and the Government over David Kelly.

As to the David Kelly story itself: one reason that I find the official story unconvincing wasn't mentioned: a person with his scientific knowledge surely wouldn't try to kill himself with a penknife and a dose of painkillers that was not certain to be effective. Wouldn't he know of (and have access to) painless and much more effective chemical means of suicide?