and they track 600 russia-linked accounts to tell us what they re up to on any given day. over the last few days, they ve been tweeting relentlessly about this florida school shooting. now, often, these russia-linked accounts track an alt right agenda but in this case they appear to be on both sides of the issue tweeting both in favor of and against gun control. one expert tells us what they re trying to do here is sow division and discord and capitalize on a fault line in american politics. the other thing they do is tweet mainstream messaging and subtly eject russian propaganda. russia is taking advantage of american social media to meddle in american politics and there seems to be very little that either these companies or the u.s. government is able to do about it, ayman. you can imagine with how politicized the gun debate is in this country, it would not be hard to weigh in on the divisions that exist. ken dilanian live for us in washington, d.c. breaking with a longtime