The above article exaggerates the danger to the US dollar and economy itself - however, it has an excellent list of bilateral agreements that show that the dominance of the US dollar worldwide is rapidly ending.
In other news, the US and Israel lost voting rights in UNESCO. Meanwhile, a high-ranking Chinese official was elected to head an important conference at that organization.
Peace with Iran may emerge because the US no longer has the will for yet another expensive war.
I think a clear pattern is emerging. There will be some injury to the US standard of living but I don't see gloom and doom. Overtime, things could get much better if the US accepts its new role as a republic - and not an empire.