Originally Posted by Joe Bauers

In the 10 days between Israel starting the current campaign and the US joining it, there was a lot of activity at Fordow. Many trucks, the analysts showed that the trucks were dump trucks, not the specialized vehicles needed to transport centrifuges or the cylinders containing the nuclear materials.

So, it looks like the Iranians filled the entrance to the facility with a bunch of dirt. If that is true, now you're talking about something very different than a quick raid.