“ In Austin’s memo, he asked the panel to address so-called “gray areas,” such as troops who do not express extremist views or act on them, but do things such as “reading, following and liking extremist material and content” online.”
As of now extremism is not well defined so they can define it to mean whatever they want in order to weed out the Trump supporters from the military.
https://www.stripes.com/news/us/austin-launching-panel-to-address-extremism-in-the-ranks-as-military-completes-stand-downs-1.669182
Some cause for concern...
“ In Austin’s memo, he asked the panel to address so-called “gray areas,” such as troops who do not express extremist views or act on them, but do things such as “reading, following and liking extremist material and content” online.”
As of now extremism is not well defined so they can define it to mean whatever they want in order to weed out the Trump supporters from the military.