Up to 50 Americans are set to sail from a Greek port on a U.S.-flagged ship that is part of an international flotilla carrying humanitarian aid and letters of support for Gaza’s 1.5 million Palestinian residents. Its fate is now in limbo under the weight of U.S.-Israeli pressure and Greece’s economic turmoil. Israel insists it will enforce its blockade on Gaza, which it says is aimed at stopping weapons from reaching the Hamas government. “The Israelis have a right to interdict arms traffic. We are bearing letters,” says Ray McGovern, former Senior CIA analyst and passenger on the U.S. aid ship. “How can these letters be considered a threat to security of Israel?” Democracy Now! producer Aaron Maté is in Athens to cover the journey of The Audacity of Hope, named after President Obama’s best-selling book. He and fellow producer, Hany Massoud, are the only journalists with the U.S. delegation. They file this exclusive report.