Anybody else see the U.S. credit rating drop?

My mother who is 55 right now received an memo from social security saying that in 2020 her SS fund will be cut from $910 month to $600 something due to the deficit.

I recieve an annual news leeter from SS stating how much i have paid and so on and on the bottom of the last one there was a memo that there was an 80% chance that by 2037 Social security would be completely out of funds and stated that it was due to the fact people are living longer now and that they were trying to pass legislature to cut back on letting wives collect their dead husbands funds if they were more and preventing children of sinlge parents from collecting their dead parents funds. All this was on a official document so its a little scary