As we discussed in Chapter8, from the passage of the 1947 Town and country planning Act until the late 1960 urban problem and their solutions were viewed essentislly in physical term. The rediscovery of poverty in Britian cities signalled an incipient urban crisis and led to a refocusing of urban policy. The spark that fired government action to tackle the emerging urban economic and social problem was Enoch Poweel rivers of blood speech, in which he critivised the rate of immigration into Britain.