And now for the definition-impaired, the meaning of the word “naive”: “deficient in worldly wisdom or informed judgment.”

There was plenty of that on display last week in Pittsburgh and in Washington.

At the annual National Conference of Editorial Writers Convention in Pittsburgh. Pennsylvania governor and former general chair of the Democratic National Committee, Ed Rendell, addressed a group of pundits on the subject, “Will the Real Democratic Party Please Stand Up?” After running through standard Democratic boilerplate issues — increase the minimum wage, raise taxes (except property taxes), spend more on education (as if too much is not already being spent with little to show for it), and, curiously, “The Bible has nothing to say about abortion and gay marriage” (but it has plenty to say about sexual relationships and life’s value at all stages). Later, Mr. Rendell invoked biblical mandates to justify his view that God meant government, not individuals or the church, should help the poor and “disadvantaged.”

Mr. Rendell was asked what he would do about Iraq if he were president. He said he is not running, but if he were and he won, on the day after his inauguration,”I would go to Iraq and ask to be on TV throughout the Middle East and I’d say, ‘We came here with the best of intentions and wanted to create freedom and democracy for all and 3,000 Americans have died. It is clear to me we have become the main problem. I’m going to ask the international community to develop a peacekeeping force and reduce our presence. We’re going to help you build houses, provide aid and economic opportunity for your people.'”

That isn’t a peace plan. It’s a plan for surrender. Like liberal Democrats in the 1980s, who believed the best way to handle the Soviet Union was to demonstrate we meant them no harm by unilaterally disarming, Mr. Rendell and many of his fellow Democrats believe there would be no consequences for America and the world should we fail to support democracy in Iraq for which millions of Iraqis have voted. Does he seriously believe such a retreat would not be seen as surrender and weakness, playing into the hands of jihadists, who would be emboldened to keep on fighting until they dominated all of Europe and then come after America? This is why liberal Democrats cannot be trusted to run the foreign policy of America.

Democrats are not alone in suffering from the naivete virus. Several Republicans last week exhibited a similar deficiency in wisdom. Senator McCain may have severely hurt his chances for the 2008 Republican presidential nomination by suggesting America should be bound by the Geneva Conventions in dealing with stateless terrorists determined to murder civilians. Murdering civilians is condemned by those same Conventions, but the jihadists are not persuaded to conform to these treaties. Mr. McCain (who was joined by fellow Republican Senators Graham of South Carolina, Collins, Snowe of Maine, and Secretary of State Colin Powell) suggested that “torturing” terrorists to extract information that might save American lives could put American soldiers at risk and that other nations would be more likely to abuse American captives if Americans appeared to sanction such conduct.

The North Vietnamese imprisoned and tortured Mr. McCain for five and a half years in the infamous Hanoi Hilton. The communists were not influenced by America’s adherence to the Geneva Conventions. Neither are the terrorists, who kidnap — and force their captives to convert to Islam or, in many cases, behead them — influenced by America’s behavior toward enemy combatants.

The jihadists know nothing but intimidation and domination. They believe us to be weak. They believe religions practiced freely within our borders are inferior to theirs. If they have their way, all of those who practice any religion but theirs will be killed or severely discriminated against. They also believe their god has told them to take over the world. That’s what they say in their sermons and media. That is what they demonstrate by their actions. Why do so many believe otherwise?

It’s easy for the elites to talk warm and fuzzy, as if being nice to killers can persuade them to be nice to us. That’s because most of the elites have escape routes or bunkers in which they can hide during a future attack. The rest of us are on our own. We should not have to pay for their naivete.