By Derek Kravitz, Columbia University’s Brown Institute for Media Innovation The Biden administration is slowly opening 100 federally-run mass vaccination sites across the country in its first 100 days. It's an ambitious goal and FEMA opened its first pilot sites last week in Los Angeles and Oakland. Other sites are planned for Queens and Brooklyn, New York and Houston, Dallas and Arlington, Texas. Louisiana has secured the Morial Convention Center for its mass vaccination site. But the pitch for a FEMA-run site is more involved than the federal questionnaire and an official request. Emails obtained by the Columbia University's Brown Institute for Media Innovation reveal that the New Orleans Health Department prepared a letter for Mayor LaToya Cantrell to give to the Biden administration on her Feb. 12 visit to the White House.