Discontinuing Contact Attempts
The program was discontinued due to little success over 20 years of attempts, hostile encounters, including the cargo ship Primrose that was caught by the tribe in 1981, and introducing diseases. The hostile encounters resulted in several deaths of people participating in the program. They were also made very aware of the disease that they may be immune to due to vaccines or evolution, but these people may not. They decided to end it soon after the first friendly encounter.