It always has value. Reading Tacitus during the Clinton impeachment hearings, or Machiavelli during the run up to the Iraq War, or Xenophon after we got into Afghanistan gives you perspective. When the Somalis dragged our pilots' bodies through the streets of Mogadishu, I thought of Achilles dragging the body of Hector around the walls of Troy.
The past is there to teach us, if we are willing to learn.
Or, as they say, we will be doomed to repeat it.
"Any Government Big Enough To Give You Everything You Want Is Also Big Enough To Take Everything You Have."-Thomas Jefferson