Tangent: I would love to see the US gov and military take coding seriously internally. It's nearly all outsourced to contractors, and the software is usually slow and buggy. I built some tools while in, but it was all bro-level.
Oh they definitely have, and likely continue to re-evaluate periodically. They've even done a lot of tests and such to determine feasibility. Unfortunately the costs tend to balloon when done internally, and the quality is not necessarily better.