Gift ShareDemocrats and Republicans grilled Facebook, Google and Twitter at a highly partisan congressional hearing Wednesday that exposed differing views and deep distrust about the power of Silicon Valley to police the web.Senate lawmakers had invited the three tech giants’ top executives to testify as part of a broad review of decades-old federal laws known as Section 230 that spare social media sites from being held liable for the posts, photos and videos they allow or remove. Many members of Congress increasingly have come to see the rules as outdated, and Facebook chief executive Mark...…Gift ShareDemocrats and Republicans grilled Facebook, Google and Twitter at a highly partisan congressional hearing Wednesday that exposed differing views and deep distrust about the power of Silicon Valley to police the web.Senate lawmakers had invited the three tech giants’ top executives to testify as part of a broad review of decades-old federal laws known as Section 230 that spare social media sites from being held liable for the posts, photos and videos they allow or remove. Many members of Congress increasingly have come to see the rules as outdated, and Facebook chief executive Mark...WW…