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Border Points: Each cluster has a limited number of defined "border points" – these are the gateways in and out of the cluster.
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公安机关依照《中华人民共和国枪支管理法》、《民用爆炸物品安全管理条例》等直接关系公共安全和社会治安秩序的法律、行政法规实施处罚的，其处罚程序适用本法规定。
And no matter what, the plan to use Russian assets remains problematic, since the ISS would have a “shallower reentry,” NASA says, and sprinkle surviving debris over a larger-than-desired area. Still, NASA would retain significant control over where any of these extant shards might plop down. They’ll probably land in the ocean, just as the space agency has always hoped. Sure, the station would have died before its time, but the thing was getting old. Most likely, it will be fine.