Getting the net off the ground
Early attention to security issues might have given us a better internet today - or the project might never have taken off at all, says Robert Kahn.
In terms of dangers, such as viruses, fraud or identity theft, I don't think we were thinking about that at all when we got started.
If we had been worried about that, the net might have been better today but we might not have even got there.
We were not really thinking about the dangers of that and perhaps we should have done.
I wish we had spent more time on that, but again, in the context of what we were doing, we might not have actually got the project off the ground.
We would have spent all our time trying to convince people to let us deal with security technology when we didn't even have the technology that could work without it.
We might not have got there.