...+ Iron Mountain has announced plans to return $2.2 billion to shareholders through 2013, but management has publicly stated that it plans to maintain leverage in the range of 3x to 4x (our fully adjusted 4.3x to 5.3x). + We are affirming our '##-' corporate credit rating for Iron Mountain Inc. and removing all ratings from CreditWatch, where they were placed with negative implications on April 19, 2011. In addition, we assigned a '##+' rating to the company's proposed $1.35 billion secured facilities due 2016. + The negative outlook reflects our view that financial policy could become more aggressive as result of further shareholder pressure. NEW YORK (Standard & Poor's) May 27, 2011--Standard & Poor's Ratings Services said today it affirmed all of its ratings on Boston-based information storage company Iron Mountain Inc., including the '##-' corporate credit rating. At the same time, we removed all ratings from CreditWatch, where they were placed with negative implications on April 19,...