The only reason the Nuremberg trails happened at all, was that Germany lost. No-one was indited over fire-bombing Dresden, or nuking Hiroshima. People didn't go to prison over atrocities committed in Vietnam.
While there should be prosecution over this, it seems unlikely to happen in the current US system. I'm not holding my breath, but with the continuing unrest in the country, there might be some actual changes in the coming years. But a lot would need to happen -- for example there's the need for a viable political power-block other than the Democrats and the Republicans -- I sadly don't see that happening any time soon.