The lengthy new report, published on ProPublica in collaboration with BuzzFeed and Columbia Journalism Investigations, has found that common dating apps do not screen for sex offenders. However, these checks are not conducted on Tinder, OkCupid, PlentyOfFish, or any of the groups other free apps.

Can sex offenders travel on a cruise?

Much like a hotel or plane, cruise lines in the U.S. are not required by law to do criminal background checks, or block passengers who may be registered sex offenders. Published policies for cruise lines like Carnival, Royal Caribbean and Norwegian do not state any restrictions on passengers with a criminal history.