Sacramento Bee:  Harborside Health Center in Oakland, California “handles $22 million in annual medical marijuana transactions.  Now Harborside is attracting scrutiny from the Internal Revenue Service. Since last year, the IRS has been auditing 2008 and 2009 federal tax returns for the Oakland location, one of two outlets Harborside operates for 70,000 medical marijuana users. . . . Harborside and other California dispensaries – which currently pay more than $100 million in state sales taxes in addition to local fees – may be in peril if the IRS rigidly enforces its tax code.”