How can Israel take out Hamas's complex tunnel system?

Israeli military tanks and soldiers advance deeper into the Gaza Strip as the ground operation goes into its fourth day. Glenn Ignazio, a former U.S. Air Force Special Operations commander, discusses this phase of the war and how the Israeli military might go about taking out the complex tunnel systems built by Hamas.

»»» Subscribe to CBC News to watch more videos: http://bit.ly/1RreYWS

Connect with CBC News Online:

For breaking news, video, audio and in-depth coverage: http://bit.ly/1Z0m6iX
Find CBC News on Facebook: http://bit.ly/1WjG36m
Follow CBC News on Twitter: http://bit.ly/1sA5P9H
For breaking news on Twitter: http://bit.ly/1WjDyks
Follow CBC News on Instagram: http://bit.ly/1Z0iE7O
Subscribe to CBC News on Snapchat: https://bit.ly/3leaWsr

Download the CBC News app for iOS: http://apple.co/25mpsUz
Download the CBC News app for Android: http://bit.ly/1XxuozZ

»»»»»»»»»»»»»»»»»»
For more than 80 years, CBC News has been the source Canadians turn to, to keep them informed about their communities, their country and their world. Through regional and national programming on multiple platforms, including CBC Television, CBC News Network, CBC Radio, CBCNews.ca, mobile and on-demand, CBC News and its internationally recognized team of award-winning journalists deliver the breaking stories, the issues, the analyses and the personalities that matter to Canadians.