标签:barbed wire
Posted in 业界观察
Security in History: June 25, 1867 Barbed Wire
K.T. Sima 2022年6月25日
June 25, 1867 – USA Lucien B. Smith of Kent, Ohio, patented barbed wire (or barb wire). Barbed…
Travel Advisory: South Korea – Level 2 (Exercise Increased Caution)
2020-02-24
If you travel to South Korea, you should...
Police Brutality in America (University of Michigan Teach-out)
2020-10-16
A one-week short teach-out course of the...