The advent of the internet hasn't just cooked up new conspiracy theories, it's also accelerated existing ones. "Hitler is still alive" rumours have circulated since the 1970s, fuelled by the fact that his crony Josef Mengele hid in South America. Stories like this one, however, speculate the 125-year-old Hitler has been responsible for various world disasters, including 9/11 and the 2010 Gulf oil spill, which happened on his birthday. Other theories say he died in 1984 in Brazil, aged 94. Or in Argentina, aged 73.
