Before people start really flying off the handle, try thinking in universe for a moment. Design flaws aside, the Death Star is an effective weapon for scaring planets into submission. And flaws can be fixed.

The know how to make one doesn't magically go away. It's like a nuclear weapon, once the genie is out of the bottle, somebody sooner or later is going to want to build one.

And how do we know this one belongs to the Empire? They aren't the only ones with a copy of the original technical readouts. ;)

Also what is up with Leia's hair? I'm getting a Mom from Futurama vibe here.