digg_url = “http://blogs.msdn.com/vbertocci/archive/2010/03/02/u-prove-community-technical-preview.aspx”;digg_title = “U-Prove Community Technical Preview”;digg_bgcolor = “#FFFFFF”;digg_skin = “normal”; digg_url = undefined;digg_title = undefined;digg_bgcolor = undefined;digg_skin = undefined; Conventional wisdom suggests that if you want to increase security, you need to sacrifice some privacy: if you took a flight in the last decade you know exactly what I mean. We…