FORTUNE -- If the subcommittee report is any indication, Tim Cook and his colleagues will face tough questions Tuesday from Sens. Carl Levin (Dem.) and John McCain's (Rep.) Permanent Subcommittee on Investigations.
The report charges that Apple (AAPL) avoided paying roughly $10 billion in U.S. taxes a year by funneling foreign income through a series of Irish shell companies
Apple says it probably pays more Federal taxes than any other U.S. corporation, and that its use of Irish subsidiaries -- regularly scrutinized by the IRS -- is sanctioned by tax laws passed by Congress.
The cable TV business news channels will probably dip in to catch Tim Cook's testimony later in the morning.
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