I don't know if I agree with more security equals more visitors. We were in Mallorca and Ibiza earlier this summer and hit several different beaches, some of them 'official' nude beaches. There were cell phones and even cameras all over the place. No one even noticed or even cared. The attitudes of the people in Europe when it comes to nudity are so different from those of us in North America I actually find it refreshing. The security that was there was minimal, and more concerned with things such as petty theft, etc. The beaches -- everyone of them -- were packed (though there was an incredible heat wave hitting at the time we were there).