He has edged to the right on two other areas where he used to be hated by his party's conservatives as a dangerous maverick: on torture (he won't rule out water-boarding) and immigration reform (he says fix the border first, which will take an eternity).
Snowe, 66, came about her independence through being orphaned at age 9 and sent off to an out-of-state boarding school run by the Greek Orthodox Church.
Travellers should also consider printing out boarding passes ahead of time to speed up the check-in process, and should remember the rules about packing liquids and electronics in carry-on and hand luggage.