President obama is back. yesterday he unveiled plans for what he called a transformational center in jackson park on the south side of chicago. the obama presidential center will be a, quote, living, working center for citizenship that will have projects all over the world, including the city of chicago. the best things that have happened to me in my life happened in this community. the closest friends that i have made, the start of my life in public service, the values that that i learned here in chicago and that we ve now passed onto our children, i owe it all to this community. well, the space is estimated to cost around $500 million with the former president pledging to fund raise to cover the cost. the site will include three buildings, including a museum, forum and a library. that center expected to open in