Few places are as politically precarious as Bangladesh, even fewer as crowded. Its 57,000 or so square miles are some of the world's most inhabited. Often described as a definitive case of the bankruptcy of postcolonial governance, it is also one of the poorest among the most densely populated nations. In spite of an overriding anxiety of exhaustion, there are a few important caveats to the familiar feelings of despair--a growing economy, and an...