MFN in US legal speak stands for Most Favoured Nation, while PNTR stands for Permanent Normalized Trade Relations.

Recently China was granted permanent normalized trade realtions with the United States so that its trading relationship, and the agreements that cover that relationship, do not need to be ratified year after year. Establishment of PNTR was also a condition to China's agreement with the United States for entry into the WTO.

Politicians of all stripes lobbied for this "normalized" realtionship with the world's largest police state and largest communist country. Why then is there still a trade embargo against Cuba? Yes, I have my own theories as to why, rhetorical question thrown out to the masses.