David Johnston is the social media manager for the Transportation Security Administration, where he leads strategy and execution for all social media initiatives. He and his team are responsible for educating the traveling public through several social media platforms. He also oversees the agency's social customer care program, known as @AskTSA. During his three decades in the communications field, Johnston has served three federal agencies. He is a frequent conference speaker on the topics of social media and customer care and also serves as media director for a national nonprofit organization.