An investigation reveals how online US sports betting grew so big, so fast and what the consequences are likely to be for public health, taxpayers, and others (David Enrich/New York Times)

David Enrich / New York Times:
An investigation reveals how online US sports betting grew so big, so fast and what the consequences are likely to be for public health, taxpayers, and others  —  The New York Times examined thousands of pages of documents and interviewed lobbyists, executives, lawmakers …