Sagan makes the point that the most dangerous collision facing us now, however, is one that might be mistaken for something else: a nuclear attack.
萨根阐述的观点是目前我们面临的最危险的是碰撞而非人们误解的核战。
2
Google demonstrates what a collisionattack looks like.
谷歌演示了碰撞攻击是什么样子。
3
A collisionattack is therefore well within the range of what an organized crime syndicate can practically budget by 2018, and a university research project by 2021.