Facebook\u2019s 3rd-quarter results are astonishing, but shares fall anyway.\xa0 Aaron Bush analyzes Mark Zuckerberg\u2019s comments about increased spending on security and shares how Facebook\u2019s margins could end up going even higher.\xa0 Plus we dig into the latest results from Tesla and Blue Apron.\xa0 To check out the latest from Motley Fool Wealth Management just go to http://Personal.Fool.com.