So what if the TSA missed it? I don't see how a small monkey is really a security threat, which is what the TSA is for. The man clearly violated the airline's policies on pets but that's an issue between the passenger and the airline.

As far as customs missing it....definitely an issue. Maybe some of their drug-sniffing dogs should be trained to sniff for monkeys.

But I don't really see this as a "safety" issue.