For a national security speech earlier this month, Sen. John F. Kerry's speechwriters produced a draft that included the story of a woman who was suddenly evicted from military housing. Because her husband was killed in Iraq, authorities brusquely told her, she no longer qualified as a military family. Kerry's prepared speech had the words to crisply convey his outrage. "How can this happen in the United States of America?" the prepared text read. "Who among us could move on short notice when you don't even know where your paycheck will come from?" But when the Massachusetts Democrat delivered the...