The Prime Minister has taken aim at an element of housing benefit his Government has helped to reform revealing that he had a "heartrending" letter from a constituent fearing her family may have to split up as a result of it. During his well-trailed welfare reform speech today in Kent - and on the subject of who should receive welfare - David Cameron indicated the system of non-dependant deductions (NDD) was unfair, despite his Government gradually increasing the amount which is deducted during ...