By Jonathan Stempel (Reuters) – Juul Labs has sued the U.S. Food and Drug Administration over the agency’s refusal to disclose documents supporting its order banning the company, which has been blamed for fueling a teenage vaping crisis, from selling e-cigarettes on the U.S. market. In a complaint filed on Tuesday with a federal court in Washington, D.C., Juul accused the FDA of invoking the “widely abused” deliberative process privilege to improperly withhold scientific materials that are “central” to understanding the basis for the June 23 sales ban. Juul said the materials would show whethe…