more than 200,000 new homes have been built in the last decade, accordin john burns real estate consulting. and that doesn count the many, many new residential towers still sprouting up in miami. and while building materials have improved in the last decade and new codes require things like shutter systems and high impact glass, very little has been done in terms of constructi engineeri to help mitigate the damage from these storm surges. m diana olick in washington. >>> insurance companies with exposure to florida were down sharply in wall street trading today. th insurance companies, mostly small cap stock, they all fell 7% or more with hci group down the most, off more than 12%. seve of the country's largest insurers, you may recall, pulled out of florida after the most recent storms. >>> airbnb is offering free rooms to those in florida and south caro to those affected by the hurricane. the company has activated its hurricane response tool. florida governor rick scott made mention of that service in this mornins briefing. >>> stocks started the day smolt lower and the dow dipped on sha