No one will know. That's somewhat the problem with all the states that take action in fields that are not subject to standards of general inspection, if there isn't a UN committee that, in future, will look at what's in the data bases of all the world's governments. And yet, that's what we do for the development of atomic weapons. However, as the minister said, we have to believe them.
On November 18th, 2010. See this statement in context.