The problem with attacking Iraq is that the US will not get the same support they had last time. Certainly overtly at least, it will not get support from Saudi. It is highly unlikely to get support from Syria. It will definitely not get support from Iran. Given that Jordan currently depends on Iraqi oil, it would not get support from Jordan. Only Kuwait would help it in terms of a land-based attack.
This means that essentially it would have to be a sea-based attack. While this is possible (as military experts have assured me) it won’t be as straightforward as having the land presence around Iraq that they had last time.
The other issue is that bombing the hell out of a country is one thing, going in on the ground with a land invasion is quite another. In addition to this, the Iraqi people - however oppressed they may be perceived as - are not going to be welcoming to a load of US troops that they have already (been taught at least to) perceive as causing them severe hardship over the last decade.
In addition to this: what the world really needs is a rehabilitated Iraq. Baghdad used to be a major international trade centre, a leading city of the Middle East, on a par with Beirut, Cairo, etc. Iraq has a huge amount of oil, it and neighbouring countries are desperate for the sanctions to end, so they and it can at least return to some sort of normalcy with trade relations and foreign policy.
Continued sanctions, continued forced ostracism of Iraq, continued mutterings of military action, and certainly actual military action, will NOT rehabilitate Iraq or help its people in the short-to-medium term, or necessarily the long-term.
A central issue is Iraq’s possession of WMDs. As a senior source recently put it to me: “The last thing we want is Iraq lobbing a WMD into Tel Aviv.” Fair enough. I am hugely uneasy that certain countries - if not all countries - possess WMDs. But I also feel that as independent sovereign nations, they have as much right to as any other country.
Look at it this way from Iraq (or any other “rogue” nation’s perspective) - why should the US, the UK, Russia, European nations, be allowed to possess huge nuclear stockpiles, WMDs, armaments, but not them? Why should they be forced to abstain from something bigger nations do, just because those bigger nations say so?
Sanctions are one thing: if you don’t like a country’s policies, don’t trade with them. But invading them because they own something that you don’t agree with - particularly when you own those things yourself - that’s hypocrisy. Only if there is a serious, realistic likelihood that another nation is about to aggressively use those things to harm another nation is military action really justfied, IMO. And is this realistically speaking the case with Iraq?