This story appears in the September 2016 issue of National Geographic magazine. Fifty-five years ago Sanford Greenberg was 20, newly blind through bad luck and misdiagnosis, and rightly angry at ...

Recent megadeal: Greenberg's acquisition of American General Corp. for $23 billion in stock, when finalized, will make it the top U.S. insurer, with net premiums of $37 billion for the year 2000 ...