No way would those cops have been able to stop him if he had had a katana. Katanas work both in close range combat and at range (just tie it to a rubber band and throw it), it's basically like a cheat code. He would have been invincible.
Yeah but if the cops did somehow stop him, then the cops would have a katana. If they were to then find out about youtube videos showing how to do kenjutsu, revolution would become impossible
That's a danger, but katanas can only be made by folding steel. American cops cannot fold steel, so they would just have the one katana. They would probably give it to the president, so he would be untouchable, but he can't be everywhere at once. And since a katana will break if you act dishonorably I don't even know how long that would last.
I should know what I'm talking about. I myself commissioned a genuine katana in Japan for 2,400,000 Yen (that's about $20,000) and have been practicing with it for almost 2 years now. I can even cut slabs of solid steel with my katana.
Japanese smiths spend years working on a single katana and fold it up to a million times to produce the finest blades known to mankind.
Katanas are thrice as sharp as European swords and thrice as hard for that matter too. Anything a longsword can cut through, a katana can cut through better. I'm pretty sure a katana could easily bisect a knight wearing full plate with a simple vertical slash.
Ever wonder why medieval Europe never bothered conquering Japan? That's right, they were too scared to fight the disciplined Samurai and their katanas of destruction. Even in World War II, American soldiers targeted the men with the katanas first because their killing power was feared and respected.
Be realistic, if American soldiers had targeted men armed with freaking katanas the war would have ended right there with the defeat of the US. They are that sharp. Must not have run into them. Either way, not exactly something that cops could deal with.