TL;DR - A German man got all the data his cell company had collected on him, correlated it to his other public data on the web (Twitter, etc) and made an online

TL;DR - A German man got all the data his cell company had collected on him, correlated it to his other public data on the web (Twitter, etc) and made an online, animated map of his life. Illustrates how much can be known about someone from these two sources and argues for restricting what carriers collect and what governments can get from them.