Cheap talk?

Teenagers who take virginity pledges — public
declarations to abstain from sex — are almost as likely to be infected
with a sexually transmitted disease as those who never made the pledge,
an eight-year study released yesterday found.

Although young people who sign a virginity pledge
delay the initiation of sexual activity, marry at younger ages and have
fewer sexual partners, they are also less likely to use condoms and
more likely to experiment with oral and anal sex, said the researchers
from Yale and Columbia universities.

Here is the story.  Here is the pledge:

"Believing that true love waits, I make a commitment to God, myself, my
family, those I date, and my future mate to be sexually pure until the
day I enter marriage."