A man described as an "anti-government extremist" set off an "incendiary device" to set a fire outside a Manhattan federal building that houses an immigration c

A man described as an "anti-government extremist" set off an "incendiary device" to set a fire outside a Manhattan federal building that houses an immigration court, the FBI said, leaving three with minor injuries. ABC News' Aaron Katersky reports. [▻](https://video.twi…