Russian Election Meddling

Russian election interference puts exclamation point on need for holistic approach

But says no evidence of U.S. collusion or effect on election outcomes to date

Facebook, Twitter, and Google execs lined up for Sept. 5 hearing

Points to absence of accusations rather than voluminous evidence of meddling

Says they could abetted by media quick to drive clicks and ratings

Facebook CEO pledges fixes to privacy, political advertising issues