Personna makes a pretty fine platinum blade in the USA. I accidentally found them at a RiteAid drug store, and have since bought more Personna branded USA blades on Amazon. They are pretty fine blades, and being a blade junkie, I now have about 50 of them. Then again, I have about 50 of most high end blades, but I have hundreds of the current Astra SP blades, as they are my favorite at present...
I tried a pack of Top Care brand blades, which are made in the US, so presumably Personna made, and they were absolutely horrid. I only made it through half of the first pass before I regulated the whole pack to merely being a blade bank for used blades. I have a pack of Personna Blue's at home to test out now, they have rated pretty good overall by others, so I'm praying they aren't at all like the generic's that factory sells to others.