U.S. President Barack Obama's ongoing trip to Senegal, South Africa, and Tanzania is his best -- and perhaps last -- chance at Africa policy redemption. After the five disappointing years of false starts, inattention, and policy drift that I wrote about below, this visit could set the stage for a strong finish. The trip itself might be merely symbolic, but symbols can say a lot about whether the U
![Missing in Africa](https://cdn-ak-scissors.b.st-hatena.com/image/square/c0312bc0e7502999d7b2042320a804671ba26c83/height=288;version=1;width=512/https%3A%2F%2Fcdn-live.foreignaffairs.com%2Fsites%2Fdefault%2Ffiles%2Fstyles%2Fsocial_share%2Fpublic%2Fpublic-assets%2Flegacy%2Fimages%2Fmissing-in-africa--hp-to-article_0.jpeg%3Fitok%3DomvMiQfO)