I believe that the government could try to confiscate gold at any time. They can make up a reason and the people will believe what they are told. I think that the ETFS were set up to confiscate. This is the perfect scheme for a huge catch of gold for the government to take all at once. Its too tempting when things get really bad with paper money.
Remember, there is a vast difference in the thinking of the people who own gold and the people who don’t. The people who own gold don’t trust the system as others do. They are not likely to give up their gold so easy as they did NOT in 1933. So the goverment mostly got the gold held in the banks in safety deposit boxes.
For survival, everyone needs some silver coins dated thru 1964 which are still legal tender and will have great exchange value in the collapse of paper money. This is everyday money to buy food and small items of necessity.