1. Because of status updates like these:
17. And pictures like these:
22. And comments like these:
25. And questions like these:
26. And because of groups like these:
27. And because of THIS:
Just kidding. I love you Facebook.
- It's time: Hillary Clinton and Donald Trump will face off tonight at 9 p.m. ET in the first of three US presidential debates.
- Inside the final days of the FARC, Colombia's 50-year-old rebel group, which is on the verge of signing a peace treaty with the government.
- Golf legend Arnold Palmer has died at 87. Known as "The King," his unusual style and charisma changed the game.