Warren Buffett has stopped donating to the Gates Foundation, ending a two-decade philanthropic partnership following revelations about interactions between Microsoft co-founder and philanthropist Bill Gates and the late sex offender Jeffrey Epstein. Buffett said on Tuesday that he was donating about US$6 billion of Berkshire Hathaway stock, comprising 12 million Class B shares, in his annual midyear donation to four family foundations overseen by his daughter Susie and sons Howard and Peter. The...