but they don't have to use their vacation days. and then they come back and then they get their back pay, in some sense, they're better off. >> let's get to mary, she is up on capitol hill again tonight. and mary, as we reported there, the ripple effects widening. members of the coast guard now will miss their first paycheck tomorrow, they become the first branch of the military to be working without pay in this shutdown? >> reporter: yeah, david, while the other branches of the military are being funded, the coast guard is being left out. today, the commandant had a message for those families at home now reviewing their finances, seeing how they can make things work, saying on facebook, we are doing everything we can to support and advocate for you while your loved ones stay on the watch. david? >> mary, thank you. we're going to turn now to the massive teacher strike under way in los angeles tonight. the second-largest school district in the u.s. more than 20,000 teachers walking off the job today. thousands rallying in los angeles in the pouring rain, demanding more pay, smaller classes and demanding their schools actually have nurses. 600,000 students now learning from subs, many of those students, though, did not show up to school today. abc's kayna whitworth from los