Close Why vaccines are so important Dr. Russell Libby of Inova Children's Hospital talks about why school vaccines are cruical to overall public health. WUSA 11:32 AM. EDT August 13, 2014 JOIN THE CONVERSATION To find out more about Facebook commenting please read the Conversation Guidelines and FAQs Leave a Comment TRENDING VIDEOS Washingtonians remember Jim Vance, long-time NBC4 anchorman Storm causes severe damage in Kent Island Md. Officer Searching for Good Samaritan Colleagues remember Jim Vance DC locals remembers legendary anchorman Jim Vance D.C. Firefighters rescue a man from trash chute Mexico resort drowning death a mystery for Wisconsin family Reverend Jesse Jackson talks about Jim Vance's impact Younger firefighters serve their community Thousands of ticks collected from state park More Stories Severe damage after storm hits Maryland Eastern Shore Jul 24, 2017, 6:49 a.m. DC Firefighters rescue a man from trash chute Jul 23, 2017, 11:00 p.m. Laurel officer searching for Good Samaritan Jul 24, 2017, 12:14 a.m.