Terror Suspect: 'Everyone Makes Mistakes' Thursday November 3, 2005 12:01 AM By MATTHEW BARAKAT Associated Press Writer ALEXANDRIA, Va. (AP) - After confessing to FBI agents that he joined al-Qaida and discussed plans to assassinate President Bush, an American student wrote a letter to his parents saying that ``everyone makes mistakes.'' ``I know this will be difficult for you ... but I've been detained here in Saudi Arabia for some charges of terrorism,'' wrote Ahmed Omar Abu Ali, 24, who is on trial in federal court for conspiracy to assassinate the president, providing support to al-Qaida and other charges. ``It...