As one of the fortunate who possess a valid US waiver (I-194) I have become complacent in travel to the US. I always ensure that I arrive at the airport for pre -screening with more than ample time prior to my departure. If I am connecting through a Canadian city which has US pre -screening I ensure that I have at least 2 hours between connections to allot for what has become a standard (at least in my travels) - the secondary screening. Having received my 5 year waiver almost 2 years ago this November in my initial travels it was always a gamble whether or not the screening officer would refer me to secondary but in the last year or so it seems that this practice has become mandatory. Here is how it is always played out: arrive at first screening with documents in hand (ticket, customs declaration, passport, waiver document) screening officer reviews documents, reads both pages of the waiver document and swipes passport officer places all documents into a yellow folder and directs me ...