<<Disclaimer: Verify this information before applying it to your situation.>>

Since we are doing a lot of opinions on this subject, I feel compelled to give 
mine.
First:  french fries unless they are homemade or made in a dedicated 
fryer/oven with fresh cut potatoes are not going to be safe from some form of 
cross contamination.
Second:  since we are trying to get healthier anyway, why not just give up 
the "fast food" fries from anywhere?  At home you can remove some of the 
grease and use a quality oil.  The only seasoning on them will be what you 
know to be safe.
I have not had fast food fries for a long time, until a couple of weeks ago.  
They tasted like old grease.  I have decided not to pay for old grease anymore.
If you plan ahead, it isn't too much trouble to make fries at home.  There are 
even some frozen that are safe, just read the labels.  
When you are out, have a salad (minus the croutons and watch the 
dressing).  I don't know about anyone else, but cutting up all those veggies 
for a fresh salad is more work than cutting a potato for some fresh fries.

by-the-way...  the fast food places are not really all that fast anymore.  I 
think that whole concept has been lost somewhere.  Just another opinion.

*Support summarization of posts, reply to the SENDER not the Celiac List*
Archives are at: Http://Listserv.icors.org/SCRIPTS/WA-ICORS.EXE?LIST=CELIAC