Joining the top 1% just got more difficult, IRS data reveals

Becoming a member of the 1% has gotten even harder, according to fresh data from the IRS. The data, which includes the year 2017 for the first time, shows that the 1% cutoff is an income of $515,371. Yahoo Finance's Akiko Fujita, Brian Cheung, Ines Ferre and Melody Hahm discuss.