Wild speculation regarding lost aircraft is nothing new , back in 1937 , before aliens and the illuminati were invented.
Ironically Amelia Earhart has become more famous for disappearing than for her many real aviation achievements. It sparked a whole cottage industry of conspiracy theorists and "researchers." There are two main themes to these ideas. One, her around-the-world flight was a cover for a spy mission, commissioned by President Roosevelt to determine what the Japanese were up to in the Pacific. Two, she and Fred Noonan weren't simply swallowed up by the vast Pacific Ocean, but were captured by the Japanese. Obviously these two main themes work well in combination.
No evidence has ever been found to support either one of these ideas. But a lack of facts has not dissuaded these researchers.
In March, 2011, as part of the never-ending search for Amelia Earhart's remains, researchers examined the DNA of bones found on Nikumaroro, and determined that they might or might not be remains of the famous aviatrix. In fact, the researchers could not even state with certainty that the small bone fragments in question were human.