<p>Standing alongside President Santos of Colombia and singer Shakira in the Plaza de San Pedro, Obama reflected on his own ancestry.</p>
<p>"Early in my presidency, my family and I visited Ghana in West Africa and we visited the historic Cape Coast Castle and I'll never forget my two young daughters, the descendents of Africans and African-Americans, looking out through the door of no return where so many Africans began their forced journey to this hemisphere," he said.</p>