Across the country, armed federal immigration officers have increasingly hidden their identities while carrying out immigration raids, arresting protesters and roughing up prominent Democratic critics. Mike German, a former FBI agent, said officers' widespread use of masks was unprecedented in US law enforcement and a sign of a rapidly eroding democracy. "Masking symbolizes the drift of law enforcement away from democratic controls," he said. The Department of Homeland Security (DHS) has insisted masks are necessary to protect officers' privacy, arguing, without providing evidence, that there has been an uptick in violence against agents. "It is absolutely shocking and frightening to see masked agents, who are also poorly identified in the way they are dressed, using force in public without clearly identifying themselves," [said German]. "Our country is known for having democratic control over law enforcement. When it's hard to tell who a masked individual is working for, it's hard to accept that that is a legitimate use of authority. The recent shootings of two Democratic lawmakers in Minnesota, by a suspect who allegedly impersonated an officer, highlights the danger of police not looking like police. Federal agents wearing masks and casual clothing significantly increases this risk of any citizen dressing up in a way that fools the public into believing they are law enforcement so they can engage in illegal activity."