It took late-night TV legend David Letterman about 50 seconds to do what loads of PowerPoint presentations, deployment-schedule shifts and turn-down-that-thermostat directives couldn’t: Solve the Navy’s budget mess. The fix involves overweight comedian Louie Anderson in a wet suit. Which doesn’t come up in any of those Navy PowerPoints. Not even in the footnotes. The “Late Show” weapons initiative has to be seen to be appreciated; click this link for video or skip to the 1:05 mark in the clip below. [youtube]http://www.youtube.com/watch?v=z_eZgbfweK0&t=65[/youtube] Letterman’s no stranger to military strategy at its highest levels. And he’s good with the enlisted side, too,…