Moody's says that the top ratings for the US and UK debt might be downgraded lower and test the Aaa limit as they reach the point of no return as their deficits continue to swell and the economy is weak. The financial crisis has hit those economies badly and managed to strike their financial sector and force the governments to extend their helping hand and increase their lending swelling their public deficits. Both nations still have stable Aaa rating yet are now below France and German resistant category as they are lower with a resilient Aaa category rating and at risk of sinking further to test the limit of the Aaa rating the point of no return the vulnerable category, which is the lower end of the top Aaa sovereign debt rating.