In the wake of the Pennsylvania election, two things are clear: Barack Obama hasn't quite made the sale. And Hillary Clinton - no matter how daunting the electoral math - never quite loses.

So Democrats are likely to watch the remaining weeks or months of their party's presidential primary election with all the horror of children watching the breakup of their parents' marriage. Clinton and Obama will pounce upon and publicize the worst they can about each other, to the delight of the one person who will benefit most from their battle, John McCain.

Obama and Clinton agree on the issues, for the most part. That leaves them little to argue about except differences in their experience, character and style. For the sake of those who are compelled to watch the remainder of the campaign, we urge the candidates to take some time away from their war of attrition to answer some of the questions left hanging in the long campaign.

• What changes, for example, would each of them make to protect America from terrorism without sacrificing civil liberties?

• A housing crisis affected much of America long before rampant home foreclosures and the collapse of the sub-prime mortgage market. It didn't come with eviction notices tacked on doors because many of the people in need had no door. They were homeless.

Countless people, many with young children, wait in line for years for subsidized housing. Others, who once lived and worked in cities that have become unaffordable, now commute miles to work, which makes them less able to save to buy a house. No significant amount of federally-subsidized public housing has been built in decades.

What, specifically, would Clinton and Obama do to increase the supply of affordable housing and reduce homelessness?

• In their last mudfest of a debate the candidates were asked how they would respond to an attack on Israel by Iran. Obama was circumspect in answering "with appropriate action." Clinton was clear: with "massive retaliation." But Iran's capability of launching a nuclear attack is years away. Nor, given a guaranteed massive response by a nuclear-armed Israel, is any such Iranian attack likely. The training and arming of terrorists bound for Israel and Iraq is a different story. It is, by all accounts, ongoing and responsible for repeated suicide bombings and attacks. What will Obama and Clinton do to put a stop to it?

• Though it's been supplanted in the American closet of anxieties by the ailing economy, health care is a growing problem. No end to the rapid escalation of costs and increase in the rolls of the uninsured is in sight. Both candidates want to move the nation toward universal health care, but their plans admittedly fall short. Clinton believes in forcing Americans to buy insurance, but she won't say how she would penalize those who won't pay or can't afford the premiums. What would the penalty be?

Obama admits that his health care plan, which lacks a mandate for adults, will leave millions uninsured. But he wants to wait and see how affordable coverage can be before considering a mandate. What percentage of a person's income does he think someone should be forced to spend if health care isn't paid for with tax revenue?

• Finally, neither candidate has convincingly explained how they would put millions of unemployed Americans back to work or create good-paying jobs for people earning a fraction of what they did before their old job fled overseas.

How, if they don't begin to figure that out, will tens of millions of Americans be able to put gas in their cars, heat their homes and feed their children? Such questions aren't being answered by personal attacks.