by Andrew BEATTY Agence France Presse CHICAGO, United States (AFP) — President Barack Obama addressed America and the world for the final time as president Tuesday, in a speech that was both a tearful goodbye and a call to arms. Capping his eight years in the White House, Obama returned to his adoptive hometown of Chicago to recast his “yes we can” campaign credo as “yes we did.” Listing landmarks of his presidency — from […]