This has been discussed at length several times this week on other threads. The general view (very well expressed by one poster) is that it is the covering of the face in public places, whether by veil, scarf, mask or woolly hat) should be made illegal in the interests of security. The number of men wearning burkhas has been minimal (and itnerestingly, I seem to recall that somewhere in Islamic doctrine it suggests that men should not wear women's clothing...) so to ban it on religious grounds will affect those women who wear it,because of the action of a few men in disguise.