You don’t need a clearance to use plain old .mil emails. Anything requiring a confidential or above clearance is on a separate network/domain. You are still releasing FOUO (for official use only) controlled information which can become classified higher if combined, but it’s not a spillage on the scale of say Snowden or Trump’s boxes.

Looks like Mayhem’s Pastel White cooling fluid. I mean it doesn’t look great running two systems on one loop but it could theoretically work. Still not going to get great thermals running two systems off one 360mm rad unless they run the a/c non stop. So cost inefficient….