The collapse of the Japanese Yen is one of the major components of my market crash thesis. The Yen has already tested the $160 area once this year, which led to an intervention by the Bank of Japan. So far their efforts have been futile. The Yen has quickly weakened again against the US Dollar, the last time it was above $160 was in 1986. Short interest continues to grow despite their efforts. This could be a historic move if the BOJ can't keep it under control. It's a ticking time bomb, even if they intervene and prop it up again.