The Koch brothers have operated largely beneath the radar of most Americans for years, convening twice-yearly meetings for the past 8 years of some of the richest and most powerful conservatives in the country. Their meetings have even been attended by Supreme Court Justices Scalia and Thomas; part of the five-vote majority on the Supreme Court that handed down the Citizens United ruling, and their Americans for Prosperity buses appear at Tea Party events around the country.

But this week, they had a little surprise--their gathering wasn't a secret any more, as around a thousand protesters showed up outside their Rancho Mirage, CA getaway. Ed Pilkington of the Guardian was there, and he joins us to give us the story.