North Korea accuses the US of planning an attack against it quite often.
NK is different than Iraq. Iraq was BS and everyone knows that.
The US have actual evidence about NK's programs. Maybe you don't know it, but the US have satellite technology that can see underground labs and technology that analyzes air samples to detect whenever a country is developing WMD's. Unlike with Saddam, they have actual evidence and NK didn't deny it.
It's pretty much impossible for anyone to hide such programs, except for Saddam of course
