...+ Global defense and communications solutions provider Harris Corp. (###+/Stable/A-2) announced that it will acquire Exelis Inc. (###-/Positive/A-3) for approximately $4.8 billion in enterprise value. + We are placing our ratings on Harris Corp., including the '###+' corporate credit rating, senior unsecured debt ratings, and the 'A-2' short-term and commercial paper (CP) ratings, on CreditWatch with negative implications, reflecting our expectation that adjusted leverage is likely to increase to above the 3x area as a result of the transaction. + We expect to lower the ratings on Harris by two notches, to '###-' and revise the outlook to stable upon close of the transaction. We will lower the CP rating to 'A-3' from 'A-2' at the same time. SAN FRANCISCO (Standard & Poor's) Feb. 6, 2015--Standard & Poor's Ratings Services placed its '###+' long-term corporate credit rating, senior unsecured debt ratings, and 'A-2' short-term and CP ratings on Melbourne, Fla.-based Harris Corp. on CreditWatch...