a commencement at moorhouse that i will have a conversation with young black men about taking responsibility as fathers that i probably will not have with the women of barnham. and i make no apologies for that. reporter: that frank conversation began only recently with my brother s keeper the group the president founded to steer young men of color to better lives. a mission mr. obama says deserves as much coverage as the recent unrest in baltimore and ferguson. and this will remain a mission for me and for michelle not just for the rest of my presidency but for the rest of my life. reporter: also more outspoken, michelle obama, who revealed at a commencement address last weekend her anxieties about becoming the first first black first lady. was i too loud or too angry or too emasculating? reporter: the president will complete his return to his roots by building his presidential library on the south side of chicago, where he started as a