美国“棱镜门”事件使得各国首脑政要们谈“机”色变,唯恐一不小心被窃听。其实,在窃听与反窃听的拉锯战中,各国不仅费尽心机窃取别人的信息,也更加煞费苦心地将自身的机密藏得严严实实。这也让很多人心生好奇,各国又有哪些防窃听的高招呢?手机的保密奇招为尽量减少泄密风险,很多国家也为总统量身打造专用保密手机。众所周知,奥巴马酷爱黑莓手 The U.S. Prism Gate incident caused the heads of state of all countries to talk about “machine” discoloration in case of accidental eavesdropping. In fact, in the tug-of-war between eavesdropping and anti-eavesdropping, all countries have not only tried their best to steal other people’s information, but also tried harder to keep their own secrets. This also makes a lot of people curious, what other anti-eavesdropping tactics it? Cell phone secrets trick to minimize the risk of disclosure, many countries also tailor-made for the president dedicated confidential phone. As we all know, Obama loves blackberry hand