The US spends more than $500 million per victim on anti-terrorism efforts. However, cancer research spending is only $10,000 per victim. Evolutionary psychology may offer an explanation for this irrational threat amplification.
Many Americans consider Iran to be a psychopathically violent nation that would be willing to commit suicide in order to kill as many Americans as possible. The statistics behind historical Iranian US relations do not support this view.
95% of suicide terrorist attacks are targeted at occupying foreign militaries. 0% of suicide terrorist attacks have been directed at countries not militarily involved in geopolitical disputes.