By Luc Olinga The social media giant steps up efforts to limit Russian propaganda on its platforms. Has Facebook finally learned from the Cambridge Analytica debacle? The social media giant seems determined not to find itself in the crosshairs from the invasion of Ukraine by Russia which has been condemned all over the world and sparked waves of demonstrations in most major cities. Facebook, which renamed itself Meta Platforms (FB) – Get Meta Platforms Inc. Class A Report last October, says it has taken down many Russian accounts that sought to spread misinformation against Ukraine on its plat…