Mueller and Secret Service agent and Don Jr spotted at Washington DCA airport--

http://www.msnbc.com/rachel-maddow/watch/intel-democrats-have-more-russian-meeting-questions-for-trump-jr-1287326275792?playlist=associated Secret Service agent must be one protecting Don Jr. However, why is Mueller there? Maybe Don Jr being taken for questioning. Stay tuned. Also which flight were they going to take, to NY? 7-31-2018