Time magazine once reported that El Paso's water was heavily laced with lithium, a tranquilizing chemical, whereas Dallas had a low lithium level. Time also reported that FBI statistics showed that El Paso had 2889 known crimes per 100,000 population and Dallas had 5970 known crimes per 100,000 population. The article reported that a University of Texas biochemist felt that the reason for the lower crime rate in El Paso lay in El Paso's water. Comment on the biochemist's conjecture.