United Kingdom's Negative Rating Outlook

Across the Curve details:

S and P has maintained it AAA rating on 19th century superpower, the United Kingdom, but has revised its outlook to negative. S and P cited the country’s increasing debt burden for the move.

Here's a chart (from a recycled post) showing the way Moody's thinks about sovereign risk.

Looks like we can update the United Kingdom as a vulnerable country.