Former President Barack Obama: "As tragic as these past few weeks have been, as difficult and scary and uncertain as they've been, they've also been an incredible opportunity for people to be awakened to some of these underlying trends and they offer an opportunity for us to all work together to tackle them. To take them on. To change America and make it live up to its highest ideals." He also says draws comparison to 1960s: "There is something different here. You look at those protests and that