The military has a hate group problem. But it doesn't know how bad it's gotten.

The rise of extremism in the ranks is seen as a "crisis issue" but the military's efforts to weed out radicals are "haphazard" at best.

The Pentagon is confronting a resurgence of white supremacy and other right-wing ideologies in the ranks and is scrambling to track how acute the problem has become in the Trump era.

It's an issue that has simmered in the military for years, but is now front and center following signs that former military personnel played a role in the deadly attack on the U.S. Capitol...