Two years ago in the northeastern Chinese city of Harbin, the brand new $300 million dollar Yangmingtan Bridge collapsed without warning. Privately, experts speculated that costs had been cut during construction, making the bridge an accident waiting to happen. Here in America, we also have many social accidents waiting to happen. For example, our own southern border security is so weak that it too is ready to collapse at any moment, with the right amount of pressure. Therefore, rescuing the wrong children could compromise our national security.