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tupelo mississippi where the sheriff's office says a man is in custody after spinning a twin turbo propeller airplane and threatening to crash it into a local walmart, triggering an evacuation. nbc's covering the story. bring us up to date as to what we know so far, and how it is this guy managed to meant steal the plane in the first place. >> you know, as, minimal start with the most important thing. incredibly, there were no injuries at the end of this. which is really unbelievable when you consider the fact that for the better part of five hours he had an airplane that was circlin...

The timeline to launch. so the last director finally pulled the plug. they said we're going to have to scrub today. here's the problem. it does not appear that this leak is actually accessible from the pad. it may be inside the engine compartment itself. what does that mean? it means there's a very good chance we'll find out later this afternoon. there's a decent chance they're going to have to roll that entire rocket back to the massive building behind me. the vehicle assembly building. if that's the only way they can gain access to the lead. when might they consider launching? monday would b...

Our top rocket experts on north korea and to paraphrase his reaction after seeing these images, wow. it confirms to him and it confirms to others that north korea has made a dangerous leap forward in missile development. instead of one engine in the first stage of this icbm, there are two. the second stage much more powerful than past models. the guidance system more sophisticated having it extend into the united states and back up the claims of the regime, the nose cone is bigger and more rounded, able to handle large maybe multiple nuclear payloads and perhaps better survive the reentry. dan...