Imagine how those billions upon billions of dollars spent in Iraq could have been used treating problems in africa, problems at home, investing in Mexico (to prevent all those illegals that are a problem) and financially supporting those that wants to be democratised in the middle east and elsewere.
Would that not have made the US, the western world and the poor/sick alot safer than the billions that are just wasted in Iraq.
As an added bonus you would not have the rapid recruitment of potential terrorists, criminals and corruption that starting a war in Iraq have brought.