[broncobilly]

Posters seem to be taking this as a joke, but I take the phrase “mobile launchers off its east coast” as very serious. If they can learn to launch off their coast, they can easily launch off our coast and don't need to develop an intercontinental missile technology.

[Pentagon Leatherneck]

Exactly right, Broncobilly. Each failed test is a Learning Experience, and the NorK’s intentions are becoming clearer every day.

TC

[Tonytitan]

... but I take the phrase “mobile launchers off its east coast” as very serious.

You are taking this to mean that they are using ship/sea-based launchers, and I don't think that's the case at all. To me it reads that they are launching from land-based truck launchers off their east coast. I've not seen it reported anywhere that they have a sea-based launch capability.