Unlike the Navy, Arlington Hall also had an African American code-breaking unit. This was not so much because the place was unusually liberal-minded, but rather because Eleanor Roosevelt—or somebody at the top—had declared that 12 to 15 percent of the Arlington Hall workforce should be black. It was poor recompense for the fact that many of Arlington’s black residents had been pushed out of their homes by the construction of the Pentagon and other military edifices, but work was welcome and this was better than nothing.