I'll chime in here. :innocent:
All we have from Tiffany regarding taking a Poly is a "Might"
I have not read that Tiffany said she would take a poly only that "she might" or "that might be an option"
There is no refusal by Tiffany to take a poly because she has never been asked to, by American LE and we don't know if Mexican authorities have asked?.
http://www.cnn.com/2010/CRIME/10/08...utm_campaign=Feed:+rss/cnn_crime+(RSS:+Crime)
"On Thursday,
Tiffany Hartley said she might take a lie detector test if people continue to doubt the veracity of her account.
If "that's what the authorities think I need to do,
then that might be an option," she said when asked on CNN's "AC 360" about taking a lie detector test."