Should government or parents have the greater say in choosing where a child is schooled? John Ballantyne looks at some American experiments with voucher-funding for schools.Unable to halt the deteriorating standards of government schools, some American states are giving parents vouchers to enable them to choose between government-run and independent schools. Under this radical scheme, parents of a school-age child receive vouchers – specially earmarked public funds – which can be redeemed at any…