The fatal shooting this weekend of a second American citizen by federal immigration agents in Minnesota has forced corporate leaders to do something they’ve rarely done since President Donald Trump returned to office last year: publicly disagree with his policies.For months, executives have kept quiet as the Trump administration expanded its sprawling immigration crackdown. The Department of Homeland Security in recent weeks has sent thousands of U.S. Immigration and Customs Enforcement and Border Patrol agents into Minnesota, leading to violent clashes with protestors.It wasn’t until the Jan. 24 killing of intensive care unit nurse Alex Pretti by federal agents that more CEOs started to break their year of near silence on the president’s actions. The following day, dozens of executives from Minnesota-based corporations co-signed a letter calling for an “immediate de-escalation” in the state.Even then, it was clear the business leaders were treading carefully — they didn’t mention the name of the shooting victim, the president by name or his policies. Instead of speaking out individually, they published the message as a group.The reluctance of business leaders — among the most powerful and wealthiest Americans — to explicitly speak out against the president’s policies illustrates how Trump has used his power during his second term. Trump has sued media companies, law firms, universities and banks, and he has threatened corporations with regulatory scrutiny and the review of lucrative government contracts.”They don’t want to speak out alone because they are afraid,” Jeffrey Sonnenfeld, a Yale School of Management professor, told CN …