Silver is one of the more valuable metals in the market today. It can be your best security against inflation and a potential collapse of the economy. Historically, silver has been used as hard currency and retains its value even when other commodities fall in the market.
In every instance of social collapse in our history, precious metals have always retained their value as a trading commodity. It is because you can use it for trade now and stock it for future use.
Silver is a better investment than gold. Silver is more attainable and costs about a fraction of what gold costs nowadays. You can go to any pawnshop and come out with a reasonable amount without emptying your pockets completely. Besides, silver is easier to carry than gold and would attract less attention.