(August 16, 2016, 10:35 AM EDT) -- WASHINGTON, D.C. — A group of nonprofit organizations on Aug. 9 asked the District of Columbia Circuit U.S. Court of Appeals to dismiss a U.S. Department of Transportation (DOT) rule that bars airplane passengers from using e-cigarettes while flying, saying the rule is improper because the DOT acted arbitrarily in setting the rule and did not consult opposing studies (Competitive Enterprise Institute, et al. v. United States Department of Transportation, et al., No.16-1128, D.C. Cir.)....