USA is the England of 1800s. Their word is the rule and their might makes it right. They spread discord, try to suppress the progress of other countries and pressures it's allies to alienate all those countries that US dislikes or have a clash of interest to hurt those country's economy. There is nothing to love about US's foreign policies unless one is residing there. But yes one can certainly learn from them how to keep every other country under one's influence.
As far as Iran is concerned, they have every right to develop nuclear technology for civilian purpose or for warfare. It's not upto US or any other country to decide who should develop what technology. US never consulted other countries when they developed their atomic bombs or decided to drop them on Japan. Why should other countries be obliged to take permission from them then?
The wars that US have engaged in recently have resulted in greater instability in those region. US produced Taliban to fight USSR, Afghanistan was run over by Talibans and now although they are not in power but continue to lurk in the shadowy sidelines. Thanks to US, Afghanistan is coming under increasing influence of Pakistan. Iraq war everyone now know was conducted under false pretext. Saddam atleast was a liberal (in terms of religion) Muslim leader, now that country is unstable and in danger of becoming another radical Islamic state. Syria a secular nation is facing the threat of war. Middle East is anyways moving towards even more radical Islamisation under the garb of popular uprising and radical Islamic parties replacing the older governments, US is only hastening the process by supporting such movements and destabilising even those countries which are not hardliners.
I will ask the same question. What did US do to bring on itself 09/11/2001? 3000+ people died that day. I am not sure how many families that affected. What should have US done? Sit around? Be nice? The audacity of war opposing crowd seriously ticks me off.
Iraq war was wrong? People say that based on the advantage of hindsight? And yes, WMDs were found.
Come on, US did not want to just bomb the hell out of Hiroshima and Nagasaki. It was provoked. Same way, it was provoked to take down Taliban and AQ and its intelligence network which very well could have been Iraq.
Just let the sleeping giant sleep.. it will not come and kick you.
Regarding foreign policy, every strong nation, at some point, has to align itself with an evil some times to bring down a bigger evil. US did that during cold war. There was a little guy named Rajiv Gandhi from India... he did something similar. Hint: LTTE, Sri Lanka.
That is politics and complexity of foreign policies. If US alienates itself from the rest of the world, the rest of the world will not return the favor.