"1/ Who is responsible for the eventual accident? Will it be operator of the computer or the programmer?"
They same as now. If something fails in a car today, it's your fault unless it's a defect. If it's becasue you ren't paying attention? then generally your fauls.
Of course, the VAST majority of accident are becasue someone isn't paying attention. That kind of goes away with the automated care. IN all likely hood, the person driving themselves is likely to be at fault.
This issue is solved.
"2/ Even if the computer is flawless, it does not guarantee that the OTHER DRIVERS will be flawless. Shit will happen. What happens if an automated car crashes into another automated car? Who decides whose algorithm/program is at fault?"
By your definition that won't happen. In your example, it involves to flawless systems.
"3/ Who is going to be sued if the automated car kills someone? The computer programmer, the one who installs it, the one who builds the car, or all of the above?"
The sam people wha re sued now. If it's a manufactured defect, then the car compnay. IF it's a mantenance issu, then the owner,
"4/ Who is going to insure an automated car? The only reason an insurance company will insure something is that SOMEONE is responsible for monthly payments and they can vindicate someone else if something goes wrong. I have yet to see an insurance company insure a computer program."
you'll get a discount if you're care is self driving, becasue the likely hood of accident drops, dramatically.
Why do you act like insurance companies don't know how to asses risk?
Automate aircraft are insured.
BTW, you cna get anything insured, including a computer program.