Environmental Protection Agency officials lied when they said a top official only once used his private email for public business, Sen. David Vitter said on Friday as he released copies of several emails in which that official conducted business with the EPA’s director and with outside groups. The revelation comes on the heels of charges from Republicans and a private sector author that former agency Director Lisa Jackson also had a private email address she used to avoid open-government transparency laws. All government business is required to be done on official emails so that it is available for open-records requests....