For me it has a possibility that USD can be used up for illegal activities. Because such as terrorist create and use this money on anything they wanted. Unless, someone can detect and stop this bad activity.
In fact all currency in the world was used in different criminal activities, maybe USD is included in this some illegal transactions. Even bitcoin have a risks and there's a possibility that in the future, bitcoin value was used by the terrorist to buy some items that they used in war. Because if we analyze all terrorist are a lot of connection in different part of the world.
Every thing is possible in this World.I agree this blindly.Because with the fact I had seen,I had come to this conclusion.So,it's possible to make use of dollar in Illegal activity.Why not dollars? Even a Bitcoin is possible.
When something has got good in it, surely it will have its negative part. Even if something is developed for good deed, surely people try to find the loop hole and tries to hinder and use upon necessity. Same is the fact with bitcoin, it gives the ease in access for illegal transactions,though usd is the one that's been used for illegal activities.