David Halberstam's new book is an extraordinary achievement. It chronicles the stunning rise in power and influence of America's communications empires. It opens our eyes to the domination of government by the media. It takes us behind the scenes and shows us the new shapes of power in America today. It brings us close to the men and women who developed and wielded that power, and wield it now. - Jacket flap.
I remember reading the book "The Powers That Be" by David Halberstam where he talks about how first the radio and later the Television made the US president much more powerful than the Congress. American democracy was much more local and decentralized before radio, and no President could get away by ruling with executive orders. In the age of social media, everyone just self bins into a few national buckets and votes accordingly, even in local elections.