url confirmed the safety of BPA BPA is safe BPA is safe Is BPA safe? food packaging stopped allowing url url 'Is BPA safe?' url agency website url says yes food packaging food packaging food packaging U.S. Federal Drug Administration banned BPA simple and unambiguous answer url BPA is safe webpage Is BPA safe? says yes url safe chemical url Is BPA safe? says yes says yes BPA is safe BPA is safe BPA is safe url FDA website