If you have the ability to insert backdoors on widely used hardware with no realistic alternative implementations, without anyone other than a very select few (who all have plenty to lose if they reveal anything) knowing about it; AND the only thing you'll use it for is National Security (preventing someone from building a nuke to drop on your country), why would you NOT go through with it?
If you have the ability to insert backdoors on widely used hardware with no realistic alternative implementations, without anyone other than a very select few (who all have plenty to lose if they reveal anything) knowing about it; AND the only thing you'll use it for is National Security (preventing someone from building a nuke to drop on your country), why would you NOT go through with it?