Not aluminum, aluminum that melts if it looks at a missile coming at it. But Trump made it clear that his complaints actually have nothing to do with efficiency or safety. I don’t like some of the ships you’re doing aesthetically,” Trump said. “They say, ‘Oh, it’s stealth.’ That’s not stealth. In June, Navy Secretary John Phelan said Trump’s priorities for the military branch could be summed up as “shipbuilding, shipbuilding, shipbuilding,” a bid that sent defense contractors foaming at the mouth.