Yann LeCun, Meta's chief AI scientist, accuses the Trump administration of starting a 'witch hunt' in academia.LeCun warns that academics risk losing their green cards based on their speech.He compares the situation to the Cold War-era Red Scare and criticizes Trump's policies on AI research funding.LeCun's criticism escalates, pointing to government pressure on the tech industry and mentioning Elon Musk's alignment with authoritarianism.