Almost 7000 nurses - including South Africans - working in the UK might be sent home by 2020 because of the government's new limits on migrants. The chief executive of the Royal College of Nursing, Peter Carter, said the rules under which immigrants were sent home after six years if they did not achieve a certain level of earnings could increase the college's spending on overseas recruitment.Hundreds of South African nurses are working in the UK and could face deportation.Carter said short-staffed hospitals could find themselves hunting abroad for workers more often to replace those sent home.He said the rules were "illogical" and would lead to waste and cause chaos, increasing the spending on overseas nurses, who would have to be constantly replaced."The National Health Service has spent millions on hiring nurses from overseas to provide safe staffing levels," he said."These rules will mean that money has been thrown down the drain." ..