Add Yahoo as a preferred source to see more of our stories on Google. What looks like a fitness group could actually be a white supremacist training cell. starush/iStock via Getty Images Small local ...

Here in the U.S., one strand of the white nationalist movement has grown quickly over the last year. So-called active clubs are popping up all over the country. They emphasize mixed martial arts ...

In the digital domain, a dark undercurrent of hate and extremism is thriving. Dubbed Active Clubs, these groups form a clandestine network of white supremacist and nationalist organizations, often ...

These men, dressed in tactical gear and masks, were members of so-called "active clubs" — a term that may be relatively new to American audiences. They are a strand of the white nationalist movement ...

Add Yahoo as a preferred source to see more of our stories on Google. Stock photo of a barbell in a gym. Getty Images. Small local organizations called Active Clubs have spread widely across the U.S.

Cells of white males have formed in at least 30 states, united around racism and an interest in mixed martial arts. Extremism researchers say... 'Active club' hate groups are growing in the U.S. — and ...

Small local organizations called Active Clubs have spread widely across the U.S. and internationally, using fitness as a cover for a much more alarming mission. These groups are a new and ...

This article is part of TPM Cafe, TPM’s home for opinion and news analysis. It was originally published at The Conversation. Small local organizations called Active Clubs have spread widely across the ...

Small local organizations called Active Clubs have spread widely across the U.S. and internationally, using fitness as a cover for a much more alarming mission. These groups are a new and ...