Student (6) Pennsylvania campus killings
https://johnchihau.blogspot.com/2026/04/john-is-example.html?m=1 . Ref: https://johnchihau.blogspot.com/2026/05/july-12-2000-thomas-jones-30-year-old.html?m=1 . . John : Private tutorial is much "illegal" than public lecture. Me: Ok. John : There're 4 levels of education. Me: How serious are those levels ? . 1) Public broadcast. (0% of being illegal) . Listeners need not do homework, 2) Public lecture. (35% of being illegal). Students need do homework, 3) Private "instruction". (75% of being illegal) <---It's duty relevant. It's excusable. 4) Private tutorial. (100% of being illegal) <--- It's duty irrelevant. It's non-excusable . ____ Me: Ok. However, what's the difference between public broadcast and public lecture ? John: In a public broadcast, the broadcaster require no feedback from the listeners. In another words, the listeners need not do any "homework". Me: Ok. John...