http://www.dw.de/dw/article/0,,1220847,00.html
"A German scientific research institute has warned that most condoms on the market contain a cancer-causing chemical and has urged that their manufacture be subjected to stringent quality control. "
"N-Nitrosamine is one of the most carcinogenic substances," the study's authors said. "There is a pressing need for manufacturers to tackle this problem."
"Shortly after the results of the study were introduced on Friday, the group banned chocolate-flavored condoms from its range. That was because the study had show that condoms laced with a chocolate flavoring had overwhelming high levels of N-Nitrosamine. "