Iran's second nuke facility

The disclosure of Iran's second nuclear facility seems to put the lie to much of what has been said on the world stage in the last year. According to news reports, the USA, UK and France say that they have been aware of the second nuke facility for years. Further, this second facility is of a type that could only be used for nuclear weapons, not peaceful nuclear power. So that means that for years, the Western powers have known that Iran was moving towards nuclear weapons but they have not made this public or taken any concrete actions to stop the mullahs. Only now that Iran has become aware that their secret was known has anything been said about this facility.

I realize that there is a need to protect intelligence gathering capabilities. This may lead at times to keeping secret the findings from that intelligence. Still, nothing excuses the lame attempts by the US, UK and France (if you even want to call them attempts) to stop the Iranian nuclear program. Indeed, it is hard to fathom why nothing meaningful has been done to keep the madmen in Teheran from getting nukes.