A conversation with Charles Platkin at 12:30 p.m. on The Wisdom of 90 Years: Dr. Marion Nestle on Food and Living Your Best Life. Registration is here.

As readers know, I love to collect reasons for the sharp increase in food prices that has occurred this year. Here’s a new one: price fixing. Although you might not know it from looking at the similar prices of food products in the same category, price fixing is illegal. Federal prosecutors are apparently looking into price collusion in the tomato industry (according to the Associated Press) and egg industry (Wall Street Journal). Who knew?