What was gained?
The US raid team captured hard drives, cell phones and laptops containing over a terabyte of data, one US official said, describing the intelligence as containing information pertaining to AQAP safe havens, targets, tactics and training techniques.
In an early bid to highlight what was gathered, the ..."
http://www.cnn.com/2017/03/11/politics/yemen-raid-details-investigation/index.html