Obama library architects chosen

The verdict is in: Tod Williams and Billie Tsien will design the Obama Presidential Center in Chicago, the presidents hometown. The husband-and-wife team beat out six other firms on the shortlist for the USs next presidential library. Most of the other contenders, including Adjaye Associates, Diller Scofidio + Renfro, Renzo Piano and Snohetta, have won high-profile museum commissions of their own in recent years.Tod Williams and Billie Tsien are best known for their divisive design of the Ameri