Enlarge (credit: Getty Images | Peter Dazeley) The Federal Communications Commission's top lawyer today explained the FCC's theory of why it can grant President Donald Trump's request for a new interpretation of a law that provides legal protection to social media platforms like Twitter and Facebook. Critics of FCC Chairman Ajit Pai's plan from both the left and right say the FCC has no authority to reinterpret Section 230 of the Communications Decency Act, which gives legal immunity to online platforms that block or modify content posted by users.