So Japan is setting course for a large expansion in money supply-- and what would stem from this is inflation (which is their goal, a 2% target). So what would this do? well it could shoot up bond prices, but then they could just buy back the shorter term bonds to keep a healthy yield curve. As for interest due on longer term bonds(like the 30y), they have more money to pay for it now that they've been printing, and if they ever run low... you guessed it, more printing. to me --- it appears that this is only going to lead to one thing- hyperinflation ---- massive devaluation of yen (so the move would be to short the yen) -- possible bond market collapse eventually - but the continued devaluation of the yen is much more clear/predictable and sooner coming than that. What do you guys think?