The Nazi version of the swastika is angled, so there is a point facing down instead of a side, which can make a difference. If you research the symbolism, the 'Nazi' version originally represented feminine aspects, or yin. In WWII, the Finn's used a blue swastika on their aircraft for recognition and good luck. Unfortunately, because of the overwhelming ignorance of the symbol's true meaning, people condemn it whenever they see it.