© istock Top social media platforms' hundreds of policy changes in the past year and a half have failed to adequately address issues of disinformation, according to a report released Wednesday. The analysis released by Decode Democracy, a campaign about political deception launched by the nonprofit research organization Maplight, deems the tech companies’ self-regulation practices insufficient and urges lawmakers to take action. “This haphazard and reactionary pattern of behavior from large technology and social media companies makes it clear self-regulation is falling short and tha...