I'm a bit confused, are we talking about the US or Iran (or possibly Israel)?
Obama didn't send any US$ to mullahs. He didn't send any to the Iranian government. I think you need a fact check here.
Iran hasn't developed nuclear weapons, US and Israel have done so. The US hasn't bombed their neighbours recently, but has bombed an awful lot of countries that aren't neighbours, Israel has bombed most of its neighbours, technically Iran isn't bombing anyone at present, and has only bombed Iraq in the past after Iraq attacked Iran. All three countries casually violate international law. All three appear to use 'holy texts', but only Israel and the US seem to want to expand their current borders. Israel and the US are certainly funded with US tax dollars. The US has probably killed the most children, even if you ignore Vietnam, Cambodia etc. Post 9/11 the US has been responsible for 5 million deaths many of which will have been children. Israel rather fewer, but still a fair number in Lebanon, Syria, Palestine in the last few years. So on child killing I'd put US top, followed by Israel then Iran.
The death toll of over 12 million in America's wars for freedom: wars in Korea, Vietnam and The War on Terror in Iraq, Pakistan and Afghanistan
www.worldfuturefund.org