Fantasy Sports began way back in the 1980's as a fun way for sports fans to "manage" their own teams across a season and over time they became big business.

Now two web-based companies that organize daily fantasy sports leagues are being investigated by the FBI, and yesterday the Nevada Gaming Commission banned their sites in that state, ruling the games are gambling, not skill-based activities.

All this is happening amid a push in some states to legalize gambling on games, and as digital technology makes it possible to easily to organize wagering.

Devlin Barrett is a reporter for The Wall Street Journal and has been looking into the fantasy sports sites, and their businesses. He joins A Martinez for a discussion on the topic.