Here's what trader Scott Nations is watching in the markets

The cause of the Ethiopian Airlines crash is still unknown, but most experts agree it is rare for two new planes to crash so soon after each other. Market participants are still trying to sort out what that means for the future of Boeing. Scott Nations, CIO and president of NationsShares, joins "Squawk Box" to discuss the implications of the crash. The discussion also touches on other stocks Scott is looking at.