Yes, I think it is. For example, the United Nations, the Bureau of International Recycling, and the Steel Manufacturers Association have all expressed alarm and have condemned the practice. They've said that this is not a good thing, because we're not recycling: nobody wants radioactive metal and there's no market for it, so therefore there's a concern about contaminating recycled products.
On March 10th, 2011. See this statement in context.