The Evolution of the BLS Price Check Tool

The BLS is a monthly price check tool that measures the price of goods and services, about 80,000 items they check on a monthly basis. So why do they keep changing the calculations for inflation? Shouldn't it just be the same? Let me call that preference this with just how the BLS set it up for us. But what I think is important is you've got to think about updating this as frequently as possible because if I look at data that's a year out of date or two years out of date, especially what the consumers have gone through.