Famed Choreographer Dies... Intellectual Property Lawyers Take Over?

Techdirt: "A few years back, we wrote about the guy who claimed to have invented The Electric Slide sending DMCA takedown notices to people who put up videos of people (at weddings, for example) dancing the dance. Eventually, the EFF sued and the guy backed down, but it looks like we haven't seen the end of aggressive enforcement of copyright control over choreography. Mockingbird writes in to let us know of a story talking about the recent death of choreographer Merce Cunningham, which focuses on how his estate is moving rapidly to execute a plan concerning the intellectual property he held in his dances."