It was a simple act this morning: lowering the flag to half staff to remember 9/11/2001.  It was a cool and wet morning and at first, I hesitated.  Why should I head out within a week of chemotherapy, etc.  I could find all kinds of reasons to sit in my comfortable chair and sip coffee… I was still on active duty; in fact, my crew had landed from an overseas mission in the middle of the night and headed home for some well deserved rest that was not to be.  Half asleep and time zoned from a trip half way around the world, I was surprised to see and hear…