Good start for a long journey.... almost missed the train to NY. The metro train dwelled at White Flint for about 20 minutes with an announcement of "sick passenger on board of a train at Woodley park". Then is started moving. Stopped again in the tonnel. Announcement about impending single tracking. The 40 minutes I have scheduled for such emergencies dwindling fast. After Medical center moving more or less steadily with just a couple of of extra delays. Finally jumped into the train with just 5 minutes to spare.