One would never have guessed that the Chinese balloon, which caused quite the stir over the US two years ago, was actually equipped with American technology for the purpose of spying on Americans. It seems that the patent technology of American companies, which must be freely lent to China, is indeed a double-edged sword. The Chinese authorities, despite the solid evidence from the American side, insist that this was merely an innocent weather research airship that veered off course. It seems that technology, after all, is a double-edged sword.