"Over the past four years, Google has admitted 'scanning and indexing' student email messages and data mining student users for commercial gain." What to take away? Data mining is present everywhere and better encryption is becoming more and more relevant in the digital life of a college student in 2018.
A summary of why encryption wouldn't have prevented General Petraeus from getting caught. Like the quote: "If you think cryptography is the solution to your problem, you either don't understand cryptography or you don't understand your problem."