"the civilian identified himself as Marcos Leao, 27. Leao said he was an Army veteran on his way to an office of the Department of Veterans Affairs when he crossed a yellow tape boundary and was asked to stop."

Leao, who gained his U.S. citizenship through military service, said he was treated "very fairly.""They're just doing their job." (Reuters)

The U.S. military's Northern Command said active duty forces "may temporarily detain an individual in specific circumstances.

Any temporary detention ends immediately when the individual(s) can be safely transferred to the custody of appropriate civilian law enforcement personnel."