Take it back! Gmail finally lets you take back an email

We've all been there... You hit send on an email and your heart immediately sinks when you realize you sent that hilarious joke to your boss and not your best friend, or the classic rely-all misfire. Well your worst nightmare may be gone. Gmail has formally added an undo send button. Bloomberg's Ramy Inocencio takes a look at some famous emails that should have been undone.