Ezra Klein explains the ice bucket challenge

The Ice Bucket Challenge has raised enough money that the ALS Assoc. is likely bumping against the limits of what they can spend effectively. Learn more about ALS: And check out GiveWell s top charities: Subscribe to our channel is news website that helps you cut through the noise and understand what s really driving the events in the headlines. Check out to get up to speed on everything from Kurdistan to the Kim Kardashian app. Follow Vox on Twitter: Or on Facebook: