Public Radio International’s Marketplace took the curious step yesterday of providing Worldwatch Institute with a forum to discuss agricultural policy. The group’s Brian Halweil took the microphone for three minutes to condemn modern beef production methods for the spread of mad cow and foot-and-mouth diseases. Noting that European leaders have replaced agriculture officials with environmentalists, he called on US leaders to follow suit. Use ‘RealPlayer’ to fast-forward to Halweil’s speech, which begins 11 minutes into the broadcast.