So now it's two hours ? Make up your mind. Everyone recommends 3 hours for good reasons. I'm happy that you have been lucky enough to get through so quickly every time but occasionally it has taken me longer than 90 minutes because the lines were longer than normal. And I am never questioned at length nor is my luggage ever x-rayed. Add potential traffic problems (eg. the current construction on hwy 1, accidents or rush hour slowdowns) and you have a recipe for potential disaster. Will you refund the money to him if he misses his flight and has to buy a new ticket ? I didn't think so.

Anyway, what could he possibly do in that one hour ? Better to go to the airport without pressure, buy a coffee and a magazine and relax near the fountain in the departure lounge. We go on vacation to relax and get away from our daily pressures and problems so why create unnecessary ones ???