How Farhad Mahmud makes his arguement.

The letter titled "America, not Iran is the problem" was written by Fardad Mahmud on Nov. 13, 2007.

The letter is mainly about an assertion, made by the U.S., that Iran having and holding nuclear weapon.

This letter does not have any link on it, so it is not clear to which article Mahmud wrote.

As it can be expected by its title Mahmud talks about how conflicted the assertion is, saying Iran should revoke its nuclear weapons, contrasting the fact the assertion does not refer to the other nuclear owning countries such as Britain, and France, except for North Korea.

In the second paragraph, Mahmud talks about how the U.S. takes a role to protect other countries, and also caused the Taliban to be made.
However, because Mahmud does not show any information that support his statement, these statements seem too weak to have authority to pursuade people reading it.

In the last paragraph, he mentions about tendency of the U.S. policy being destructive.

Through out his writing, Mahmud seems to have strong opinion, however there is no enough information and authority to support them, so the writing does not seem to have so much power to convince readers.