PACKAGING CORPORATION OF AMERICA (PKG $26.25, rated Neutral, Price Target $25) ESTIMATE CUTS DUE TO INPUT COST AND PRICE PASSTHROUGH ISSUES 4/23/2010

PACKAGING CORPORATION OF AMERICA (PKG $26.25, rated Neutral, Price
Target $25) ESTIMATE CUTS DUE TO INPUT COST AND PRICE PASSTHROUGH
ISSUES 4/23/2010