Who is the bigger threat to the world, the US or Iran?

[Kazuaki Shimazaki II]

Iran: Wants nuclear weapons. Sometimes threatens to destroy a certain, tiny country that is admittedly a little annoying.

US: Has nuclear weapons and the world's strongest military. Makes a LAW to destroy everyone elses' economies if they don't agree US policy on Iran. Any exceptions are at the grace of US.
http://www.bloomberg.com/news/2012-0...n-banking.html
(one of many, many on this topic)

A choice passage:

Mark Dubowitz, executive director of the Foundation for Defense of Democracies in Washington, said in an interview that the Obama administration’s action yesterday “begins to reduce some of the uncertainty in oil markets over how the administration will apply oil market sanctions.”

“It gives Japan, in particular, which needs to keep buying Iranian oil, a clear pathway to continue those purchases without putting their financial institutions at risk,” said Dubowitz, who has advised the administration and Congress on sanctions. “It also establishes an early precedent that puts pressure on South Korea, India, China, Turkey, South Africa and other major buyers of Iranian oil to also comply with U.S. law.”

Note the last part. Note that it is not with a UN resolution or anything of the sort. But "US law".

Used to be, the US at least tries to hide its claws.

How did the world come to such a state?