While the majority of corporate meetings are avoiding the week of September 11 like the plague, many associations that booked meetings over those dates years ago don’t have the luxury of making alternate plans. The question for association planners in that situation is: Given the emotional resonance of the day and fear of "anniversary" terrorist attacks, will attendees come?

They can take heart from a new national poll of travelers conducted by Yesawich, Pepperdine & Brown, an Orlando, Fla.–based travel marketing firm. While YP&B did find that 18 percent of business travelers indicated that they would not travel on or around September 11, a resounding 82 percent replied that they were not concerned about possible terrorist activity and would not change their travel plans.

As one person who plans to attend an industry conference that week says, "Even though I’m a white-knuckle flier under the best of circumstances, and even though this will be a tough time to be away from home, the content is too compelling to stay away." The final verdict, however, will have to wait until the post-con numbers come in.