Recently, the AAI has been calling on the Department of Justice to block Comcast Corp.'s ( CMCSA ) proposed $45 billion acquisition of Time Warner Cable Inc. ( TWC ) and questioning the wisdom of letting Sysco Corp. ( SYY ) go through with its pending $8.2 billion proposed acquisition of US Foods Inc. The AAI also opposed the terms under which the DOJ approved U.S. Airways Group Inc.'s $11 billion purchase of American Airlines Inc. ( AAL ) last year.