Facebook crushes Q3 earnings but warns that future profit will slow (FB)

Facebook beat Wall Street's expectations for the third quarter and reported its best earnings ever.
But CEO Mark Zuckerberg warned, "We're investing so much in security that it will impact our profitability."
Facebook plans to add 10,000 more employees to aid its safety and security efforts by the end of 2018.Facebook blew past Wall Street's third-quarter financial targets on Wednesday but cautioned that future profitability will be impacted by increased investments aro