Agents from the Federal Protective Service guarded the Portland ICE facility Sunday night, making at least one arrest as they escorted vehicles into and out of the building while pushing away protesters near the entrance. One federal agent fired sting balls as well. Earlier in the afternoon, FPS agents dialogued with the activists, clarifying their role as protecting the building but not in immigration enforcement itself. An anti-ICE protester told an FPS agent (part of the Department of Homelan