Advocates credit stricter requirements for teenage drivers in place since 2009, including a law allowing drivers under the age of 21 to carry only one passenger.

WSJ: Driver's Ed, for Parents

The wife one passenger said Tuesday she was only beginning to come to grips with the likelihood that he is dead.

CNN: Former royal, Riverdance star among plane's missing

The contaminated ships have since been disinfected but with only mixed success, perhaps because a sick passenger (or one who is incubating the virus) can board and infect others.

FORBES: Magazine Article

He also said only one serious violent crime against a tourist -- a cruise-ship passenger -- occurred last year.

WSJ: Mexico Leader Lauds Nation's Safety at Tourism Conference