She's the Secretary of State. He's a globe-trotting ex-president. Are Bill and Hillary Clinton doing enough to avoid conflicts of interest? According to The Washington Post, maybe not. Near the top of Hillary's agenda are Northern Ireland, Haiti, and Third World development, countries and issues that are part of Bill's charitable mission. In North Korea, Bill secretly pushed the administration's agenda. "They need to walk a very careful line; it's a very tricky area," said the spokesman for Sen. Richard G. Lugar, the top Republican on the Foreign Relations Committee. "A lot of the overlap in their interests and work you might see now are probably an outgrowth of having worked together on those issues when they were in the White House," said a spokesman from Hillary's presidential campaign.