This more realistic approach to characterizations built up Marvel’s reputation and began to attract university-age readers. Stories also began to deal with social issues such as pollution, race relations, and drug abuse. A Spider-Man story arc from 1971 dealing with drug abuse had to be submitted without the approval of the Comic Code Authority—the self-regulatory body that had policed comic content since 1954—despite the fact that it was portraying drug use in a negative light. This caused the Comic Code Authority to revise It's policy in such matters.