Olive and Pocus are drug-sniffing dogs who work at the airport. Drug sniffing dogs will sniff suitcases and, if they smell drugs inside, will sit-down in front of a suitcase.

Olive and Pocus work independently. When there are drugs in a suitcase, Olive will detect the drugs with probability 0.69.When there are drugs in a suitcase, Pocus will detect the drugs with probability 0.52.

When a suitcase contains drugs, the drugs will be detected if either Olive or Pocus or both of them detect drugs.

Suppose there are drugs in a suitcase and both dogs sniff the suitcase. What is the probability the drugs will not be detected?