The Switzerland trips story was almost certainly disinformation. Someone (maybe Orlin Grabe, or maybe he just repeated it.) posted ascii text purporting to be American Express charge records from Foster's account for airline tickets to Switzerland. Anyone can type anything they want to and post it. The folks who created these records didn't even bother to make up any other charges (hotel, restaurant, gift) that might normally occur when one travels to Europe.
ML/NJ
Thanks.