davos switzerland u.s. vice president joe biden urge executives davos use influence drive change countries lesbian gay bisexual transgender people face repression put gay right heart year meet issue official agenda first time world economic forum political leaders countries discriminate gay people nigeria russia schmooze business leaders billionaire investors biden tell u.s. executives include nathan blecharczyk co-founder apartment-sharing firm airbnb muhtar kent chairman ceo coca cola company anthony scaramucci founder hedge fund skybridge capital push change change term debate say actually put governments notice say president barack obama privately raise issue repression lgbt community meet political leaders run-ins least four head state already say biden bang fist table biden say national cultural justification discriminate lesbian gay bisexual transgender people people use cannibals part culture people use terrible things part culture say chad griffin president human right campaign unite state large lgbt civil right organization say business leaders take opportunity davos confront leaders countries hateful laws big business key lobby change gay marriage around world lead company include google twitter ebay release videos employees voice support marriage equality ahead country-wide vote issue ireland apple ceo aapl.o tim cook come last year accord u.s.-based center talent innovation 41 percent lgbt people feel comfortable disclose sexuality work u.s. supreme court rule legalize same-sex marriage nationwide last year still legal many u.s. state fire someone base sexual orientation biden urge u.s. business davos lean anti-gay state