This is what we first thought happened--
http://www.chron.com/cs/CDA/ssistory.mpl/business/3229428 WASHINGTON - Confronted with a possible case of mad cow disease last year, the U.S. Agriculture Department failed to perform all of the same rigorous tests it had used to confirm an incident of the brain-wasting ailment back in 2003.
Federal regulators skipped a key test last November that is routinely used elsewhere by experts who say it is, under certain circumstances, more effective for detecting the dread disease...snip
USDA officials did not employ the Western blot test to further verify the IHC results, contending the two tests are "equally effective."
A few days later--
http://www.democraticunderground.com/discuss/duboard.php?az=show_mesg&forum=104&topic_id=3948400&mesg_id=3948400 They DID run the test, it was POSITIVE, back in NOVEMBER.
But what did the Secretary of Agriculture reporters?--
http://www.businessweek.com/ap/financialnews/D8AU5K200.htm?campaign_id=apn_home_down JUN. 24 3:07 P.M. ET Amid uproar from cattlemen, Agriculture Secretary Mike Johanns questioned why his department's inspector general ordered new tests for mad cow disease two weeks ago without his knowledge or approval.