Back Bay Businesses Large And Small Affected By Marathon Blasts

Three days after the Boston Marathon bombing that left three dead and injured more than 170, much of the city's Back Bay neighborhood remains transformed.

The historic area — one of the city's premier tourist destinations — is a favorite for shopping. But parts are still largely off limits as forensic experts continue to collect evidence. WBUR's Bruce Gellerman reports on how that is affecting businesses large and small.