The unhappiest passports on earth:
[When taking a [photo of a person applying for a passport] "The subject's expression should be neutral (non-smiling) with both eyes open, and mouth closed. A smile with a closed jaw is allowed but is not preferred," according to the guidelines.
… Smiling "distorts other facial features, for example your eyes, so you're supposed to have a neutral expression. … The most neutral face is the most desirable standard for any type of identification," said Angela Aggeler, spokeswoman for the State Department's Bureau of Consular Affairs, which handles travel-document guidelines.
