July 4th was tense in Richmond as residents continue to clash over the movement to remove Confederate statues in the city.

Federal prosecutors say Army Pvt. Ethan Melzer tried to conspire with neo-Nazis and jihadists to ambush his own unit. Researchers say "hybrid" motivations are part of today's extremist threat.

Researchers warn that the pandemic's mix of fear and isolation can fuel extremism among young Americans. A new guide helps parents watch for signs of radicalization.

The actor and serial prankster Sacha Baron Cohen is suspected of infiltrating a far-right group's rally in Washington state over the weekend.

It is no secret that the U.S. citizens are deeply divided along political lines. But a new study has found that Americans are not nearly as divided as they might think.

A U.S. soldier is charged with passing military secrets to a white supremacist group in Europe. Prosecutors say the soldier plotted an ambush of his own unit.

Twenty people are facing prosecution amid reports of at least 50 vehicle-ramming incidents at protests since late May.

The open-air camp in the Capitol Hill area is more than a week old. Underneath the peace-and-love vibe is an undercurrent of anxiety that it won't end well and that black people might get the blame.

It's been nearly a week since Seattle Police vacated their precinct in Seattle's Capitol Hill Neighborhood. Protesters now occupy the area.

Nearly three dozen incidents of cars ramming into protesters have been recorded since the start of unrest over George Floyd's death. Researchers say it appears to be a growing tactic of the far right.

Attorney General William Barr said peaceful protests were "hijacked by violent radical elements." President Trump blamed "Antifa and the radical left."

In the early 2000s, war games about pandemics popped up. But participants say the outbreak threat couldn't compete with more visible national security concerns such as wars and terrorist attacks.

In the early 2000s, war games about pandemics started popping up. But at the time, the outbreak threat couldn't compete with more visible national security concerns like wars and terrorist attacks.

Justice Department officials say Apple hampered their investigation by refusing to unlock the gunman's iPhones. The case is part of a longstanding debate over national security interests and privacy.

The U.S. was deeply divided before the coronavirus hit. Now, researchers worry that the pandemic is worsening what they call a dangerously polarized climate.

Threats against contact tracers, intimidation of people with masks, shooting at McDonald's — the debate over the coronavirus is becoming more violent. Researchers warn that violence can keep rising.

The Real Idaho Three Percenters' involvement in a potato giveaway raises questions about the role armed groups are playing in the coronavirus response.

With the coronavirus crisis, researchers warn extremists have a captive audience for their message: millions of young Americans who are out of school and spending hours unsupervised on social media.

White nationalists and other far-right extremists see opportunity for attacks and recruitment in the chaos of the U.S. response to the crisis.

Blaine County, Idaho has become a hot spot for coronavirus infections. Among the groups mobilizing to support residents is a militia that doesn't trust the federal government for disaster response.