Of course I am not 100% certain. I am not in Iran and am not a weapons inspector!
From everything that I have read though, and even what the Americans said recently, they are not about to produce a nuclear weapon. As I said above, N Korea (another enemy of the West) has nuclear weapons but does not use them. They have, however, prevented the US, etc from attacking them.
What we do know is that Netanyahu and his government are bloody thirsty liars, intent on destroying Iran and the regime and will make up any amount of lies to persuade the US to support them. Did you watch the video I linked to?
Why on earth are you listening to U vd L?
Since when do these people tell the truth?