A Breakthrough Against HIV?

Great news:

In a significant step toward an AIDS vaccine, U.S. government
scientists have discovered three powerful antibodies, the strongest of
which neutralizes 91% of HIV strains, more than any AIDS antibody yet
discovered.

Looking closely at the strongest antibody, they have
detailed exactly what part of the virus it targets and how it attacks
that site.

The antibodies were discovered in the cells of a 60-year-old African-American gay man, known in the scientific literature as...