The latest wave of healthy school food rules came down last July. They regulate what can be sold in vending machines and for school fundraisers. Critics complain that they are way too strict and in fact more than 20 states are seeking exemptions from them. So how bad are they? WBEZ’s Monica Eng took a look in a feature on the issue today and found some surprising foods sold under the smart snack banner. Also, music from Tal National. (Flickr/the 3786 cups of water)