E-MAIL FROM IRAQ A friend of ours, Heidi, a doctor and Lt. Cmdr. in the Navy, just finished a seven-month deployment to Iraq treating wounded Marines. Just a few weeks ago, she came home to her 2-year-old twins she left with her husband while she served in Iraq. While waiting for her flight home, Heidi wrote an e-mail home listing the good and the bad of her tour of duty. She did this for closure and healing, hoping that somehow the trauma, the fear, the grief, the laughter, the pride and the patriotism that she experience in those long...