I agree completely, get back on the horse.
You can't go around thinking you'll be hit by lightning, a car or a meteor - but these things could happen. Live life and fly.
As far as articles, maybe you should point out the resiliency of the online travel market as a sign that people are still travelling:
http://www.internetnews.com/ec-news/...956511,00.html
"In July and August, online travel sales reached a fever pitch, fueled by consumer comfort with buying online, deep price discounts, and new choices in online agencies," said Dan Hess, comScore vice president. "But after Sept. 11th, the sector's sales fell dramatically, before beginning a slow recovery. However, comScore data for the first two weeks of January 2002 show a strong resurgence in online travel spending."
<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by IsleTraveller:
Offer to do a mileage run WITH her and get her to pay 
Seriously, you just have to get back on the plane and do it. It's like falling off a bike.</font>