nprnews_____ = ||| lubuntu at wor3 2J1P|||Capitol Riot Prompts A Reckoning Over Extremism In The Ranks||| kickerpage = |||no kicker pagenpr for NPRNEWS||| summarynpr = |||The deadly riot at the Capitol on Jan. 6 has forced military leadership to confront the threat of domestic extremism. Rioters that day included current and former service members.