John Bolton on Bill Clinton in North Korea:

While the United States is properly concerned whenever its citizens are abused or held hostage, efforts to protect them should not create potentially greater risks for other Americans in the future. Yet that is exactly the consequence of visits by former presidents or other dignitaries as a form of political ransom to obtain their release. Iran and other autocracies are presumably closely watching the scenario in North Korea. With three American hikers freshly in Tehran’s captivity, will Clinton be packing his bags again for another act of obeisance? And, looking ahead, what American hostages will not be sufficiently important to merit the presidential treatment? What about Roxana Saberi and other Americans previously held in Tehran? What was it about them that made them unworthy of a presidential visit? These are the consequences of poorly thought-out gesture politics, however well-intentioned or compassionately motivated.