The solution you proposed at the end is definitely a big deal. It's not just upgrading our technology in the field of Home Land security. It involves great commitment. Commitment from Government. Commitment from Armed Forces. Commitment from Police Departments. Commitment from Intelligence...... Commitment from entire Defence system... Zero corruption in defence etc etc. I am not saying that everyone is a traitor/curropt. There are many sincere officers. But when it comes to Home land security, we need 100% sincerety. No exceptions what so ever. WHICH IS A DREAM and i guess WILL REMAIN A DREAM..
Over population, no proper citizen identity system (ex SSN in USA), no accountability of how people make money etc etc. Many things have to be changed to achieve what you've proposed.
Of course, nothing wrong in dreaming. Let's dream. I wish I could make a difference.