Yale's Shiller urges caution amid improving housing numbers

Following the recent positive report from the Case-Shiller housing price Index showing a second consecutive month of improvement in May, Yale rofessor Robert Shiller comments on what the numbers might mean. Shiller suggests remaining cautious about whether this is the start of a full rebound in the housing market, and urges  homebuyers and sellers not to speculate on a sustained increase in housing prices.