FILE - Federal Reserve Chair Janet Yellen speaks during a news conference December 13, 2017 in Washington, DC. (Alex Wong/Getty Images)REHOBOTH BEACH, Del. (AP) - President-elect Joe Biden’s choice to be treasury secretary, Janet Yellen, collected more than $7 million in speaking fees over the past two years from major financial firms and tech giants including Citigroup, Goldman Sachs and Google, according to disclosure forms filed as part of her nomination.Yellen’s was among three financial disclosures turned in by Biden transition officials that were made public on Thursday by the Office of Government Ethics.