https://www.youtube.com/watch?v=DiT_BR6T_CY
Looks like cool stuff.
http://www.ibtimes.co.uk/terminator-style-self-healing-material-created-by-nasa-michigan-scientists-1518142
However, there is always a possible dark side application.
http://investmentwatchblog.com/nasa-creates-self-healing-material-that-repairs-itself
Any technology has the potential to be used in war, weather it be a pen, sward or a motherboard.
http://www.news.com.au/technology/innovation/nasa-self-healing-material-can-repair-itself-two-seconds-after-being-shot-by-a-bullet/story-fnpjxnlk-1227506001680