Samsung makes killer robots and tankers.

http://en.wikipedia.org/wiki/Samsung_SGR-A1

https://www.shi.samsung.co.kr/eng/Pr/shipstory0201.aspx

Google makes robotic pack dogs for DARPA:

http://www.theverge.com/2013/12/14/5209622/google-has-bought...

https://www.youtube.com/watch?v=M8YjvHYbZ9w

Didn't they drop that contract?

Giant industrial conglomerates are a totally different case. We are talking about a normal, single-product/field company switching to something totally unrelated. That's totally insane.