<<< I don' know why they are not doing anything in the US to block these scammers...etc>>>>>

Imagine if your will,   almost 350 million people in the US with over 500 million+  telephones,  with calls incoming and outgoing from each,   and then include all of the foreign phones calling into the US.   Consider that most scams originate from other countries,  most of whom are hidden in basement boiler rooms,  and run their scamming operations with police bribes and their government's blessings.  To Run these scammers down it involves Government to Government diplomacy, co-operation and certain protocol proprieties with these Governments,  who are totally unfriendly to the West and is considered jobs by their governments and part of their economy.  Now, consider that each one of the over 300 million people and over 500+ million telephones operating have not submitted a list of those calls that are acceptable and unacceptable to each and every one,  nor does the equipment exist to instantaneously decide which calls each of them want to block or let pass.  There are many ways that have been suggested on this forum but most still maintain that Education of the public and well targeted drone strikes is a step in the right direction.

Your suggestion has just given me the solution to all our problems!  The government blocks all phone calls.  That's right no phone calls allowed!  Wait you say to want to still receive some phone calls?  Well we can do that.  Only the phone numbers that you have opted in on the new government list will be allowed through.  As long as you have all the numbers of people you think might want to call you then this should work perfectly.  Oh course if 911 fails to list your number on the opt in list and your house catches fire, well that's why you have insurance right?  Just think the only phone calls you will ever get are from those people on your list.  Hopefully the pizza joint has your number on their opt in list so you can get that delivery.  But hey, pizzas are fattening anyhow right?  Yeah this system will work out beautifully.

I think all calls from any country into the US should be labeled as to country of origin.

Mine was addressed District of Columbia

They tried the same thing on me. When I told the guy I wasn't going to give him any of my banking information he hung up on me. Two days later they called back and gave me the same speal that this was the only time that I could take advantage of the "grant money" from the government and I needed to call a David Coleman at 202-241-8900, another number that when you try to call any time unless right after you get done with the 202-214-7124 number it is no longer in service. They need to be found and throttled!!!