Aviation expert sheds light on air traffic control challenges, difficulty of navigating congested...

The midair collision between a military helicopter and a plane in Washington, D.C., on Wednesday night is renewing concerns about aviation safety.
Subscribe to WGAL on TH-cam now for more: bit.ly/1lIwU2e
Get more Susquehanna Valley news: www.wgal.com
Like us: / wgal8
Follow us: / wgal
Instagram: / wgal8