Sometimes Congress manages to tie our shoe laces together and trip us up:
Complaints from the Congo are growing about the U.S. legislation intended to stop illegal mineral sales. The Dodd-Frank bill (also called the Obama Law) has a clause that prohibits the sale of so-called conflict minerals may have been well-intentioned but it was not well-thought out. Rather than run the risk of buying any minerals that might have been smuggled from the Congo, many major mining companies are simply refusing to buy minerals from central Africa. The result is a de facto embargo. There are few buyers for Congo’s valuable minerals, especially tantalum and tungsten which have many hi-tech uses. This has damaged the Congo’s economy, because the nation relies on mineral exports. According to some sources, China, which does not have to meet Dodd-Frank standards, is snapping up many minerals at very cheap prices.
No matter. We can feel good about our moral superiority. That's more important than an actual effective foreign policy, right?
Foreign policy "realists," indeed.