This project, reported by WNYC and npr's On the Media is one of the best uses of web crowd sourcing I've heard about.
They ask listeners across the country to write their senator asking whether s/he placed a particular anonymous hold and then to submit the response. To date they collected 96 written denials and four "it's none of your business!". Step two is to reword the question and have residents of four states pose them in writing. Rather brilliant.
I also love the implicit claim to inequality in the "it is our privilege to keep secrets from our constituents" stance. This is what Gillian and I are writing about in our paper "Democracy and the Information Order."