Protesters at the Immigration and Customs Enforcement facility in Portland may have had their identifiable information from their cellphones surveilled, new reporting from Straight Arrow News found. An analysis done by the news organization found evidence that suggests a cell-site simulator was used in the area. These devices mimic cell towers and are able to capture a phone's unique SIM card number known as an International Mobile Subscriber Identity. Mikael Thalen is a tech reporter for Straight Arrow News and used a research tool known as Marlin to report this story. He joins us to share more.