Soda Tax in Philly to Fund Pre-K?

When other cities have proposed a tax on sugary soft drinks, it’s often sold as a plan to fight obesity. Not in Philadelphia, where a battle is brewing over the mayor’s 3 cents-per-ounce tax plan that would be used to fund citywide pre-K. The beverage industry opposes the tax and argues that if you’re going to tax them, then why not cakes and candy? Hari Sreenivasan reports.