Mistakes get made, accidents happen. It may well be impossible to avoid that. But what is possible is to be open about it, and to reveal all the evidence and not try to suppress it and tell lies about it not existing.

It shouldn't be a matter of pointing fingers at the Yanks and trading insults. The British Government was just as complicit in this effort to suppress the evidence, and telling lies about it.

People talk about zero tolerance sometimes. There should be zero tolerance of attempts to suppress the truth about incidents like this.