The Muslim imam who gave a closing benediction at the Democratic National Convention in Boston also served as a character witness to Sami al-Arian, the Florida professor indicted by the U.S. Justice Department on 50 counts of terror-related charges. On the second day of the Democratic National Convention, Imam Yahya Hendi said the closing prayer of the night with some verses from the Quran. Yet, last July, the 9-11 commission heard testimony from terrorism expert Steven Emerson that Hendi, one of the top Islamic clerics in the U.S., backed al-Arian – head of the Palestinian Islamic Jihad in North America....