1143 GMT - After a prolonged period of rising yields, government bonds offer value, Harvey Bradley, head of global rates investment at Insight Investment, says in a note. Insight Investment expects that yields should be lower over the next 12 months, he says. In U.S. Treasury markets, the opportunity appears most attractive in shorter maturities, while in markets such as the U.K. and Japan there is potentially greater value further out along the curve, according to Insight Investment. "At the very long-end we remain more cautious, although we have tactically reduced our underweight following the announcement of Treasury buybacks."