> I always found it strange if the Japanese are so honest (perception may be different than reality) then why do they need so many cameras? Solving the long ta

> I always found it strange if the Japanese are so honest (perception may be different than reality) then why do they need so many cameras? Solving the long tail end has decreasing returns. If you already have a well-behaving society, then adding a few cameras probably won't change anything at all. You need a whole lot of cameras to have any meaningful effect.