san jose calif. facebook inc begin overhaul handle political ads platform may put change place u.s. elections next year facebook chief technology officer say wednesday u.s. congressional state elections set november 2018 present deadline sort facebook social media company get good halt kind election meddle unite state accuse russia work stuff actively big focus company improve regular basis facebook cto mike schroepfer say interview go see regular cadence update change say speak sideline conference facebook host virtual reality technology chief executive mark zuckerberg say last month company would begin treat political ads differently ads include make possible anyone see political ads matter target u.s. lawmakers begin call regulations disclosures facebook twitter inc alphabet inc google products battlegrounds russian election meddle last year turn crisis silicon valley facebook chief operate officer sheryl sandberg washington week meet u.s. lawmakers moscow deny allegations meddle last year u.s. presidential election implement change tricky schroepfer say facebook want stifle legitimate speech volume material facebook world large social network billion users million advertisers invest heavily technical solutions operate unprecedented scale say facebook also use humans company say month would hire 1,000 people review ads ensure meet term schroepfer 42 facebook cto since 2013 previously director engineer also sit facebook board directors facebook deal problematic user-generated content past say want misuse platform whether foreign government try intercede democracy obviously ok whether individual spew hate upload pornography say facebook push ad overhaul 2018 u.s. election executive