What advantages would this have over the submarines that are already in use today? > If terrorists are building a nuke you can drop it on them and make it look

What advantages would this have over the submarines that are already in use today? > If terrorists are building a nuke you can drop it on them and make it look like they blew themselves up. Not even going to get into what a ridiculous fantasy scenario that is. And anyway, has the US demonstrated any reluctance in dropping conventional warheads on terrorists? > Last ditch asteroid defense. This comes across as an idea one would develop from watching tv shows and movies, as it doesn't make a whole lot of sense.