The Merchant of Venice is now the most contentious of Shakespeare's plays. Its only rival in this respect is Othello, and this is because both plays deal with dangerous issues of race. In Othello Iago uses the protagonist's colour both to goad his victim's jealousy and to excite the animosity of Venetians against this visible outsider; in The Merchant Shylock's Jewishness renders him, from the beginning, the object of general opprobrium in Christian...