Indeed it is financial warfare behind scenes (media).
It has been US vs Iraq (oil was traded in euro) - problem solved "you know how"
It still is US vs Iran (Iran still trades oil in euro, but the problem seen by US is more for nuclear fuel market than oil)
I don't know about russian influence on dollars even if they trade oil and gas in roubles, but their influence is more over Europe than US.
China has 1000 bil. dollars in their pockets and if they want they can sink the dollar.
You only have to know how the currencies work in the world and create for yourself a bigger picture.
For this, I urge all of you to read this:
http://www.europe2020.org/spip.php?article500&lang=en - long but very intresting.
And this:
http://www.courtfool.info/en_Cost_ab...the_dollar.htm
And this:
http://www.courtfool.info/en_Raid%20...l%20Market.htm
Best regards to project Camelot/Avalon founders and memvers!