Article: After HMS Sheffield was wrecked by an Argentinian attack, The Sun was heavily criticised and even mocked for its coverage of the war in The Daily Mirror and The Guardian, and the wider media queried the veracity of official information and worried about the number of casualties, The Sun gave its response. "There are traitors in our midst", wrote leader writer Ronald Spark on 7 May, accusing commentators on Daily Mirror and The Guardian, plus the BBC's defence correspondent Peter Snow, of "treason" for aspects of their coverage.

Now answer this question: What was the accusation leveled by Ronald Spark against The Daily Mirror, The Guardian, and BBC?
treason