will see that most of the plates are pretty clean. and this is due to a kind of postwar mentality that grew out of the last economic crisis in cuba in the 1990s, when protein was scarce and often, people didn't know when they would get their next meal, so they ate what food they have. >> eat to becracy, mind, body, wallet, continues next wait. more stories on healthy eating, and also learn more about how to unlock the cnn healthy eater badge on four square. the west wing is losing some muscle this morning. white house chief of staff, rahm emanuel is set to step down today, heading home to run for mayor of chicago. that's the word from cnn sources. in just about an hour, president obama is expected to make a personnel announcement. but the white house refuses to confirm that it is related to