In any event - the interrupter's work on the same cable as the regular brakes. So you have a brake-lever at hand when in the drops, and one when riding with the hands on top of the bars. And the interrupter's work very well - unlike the suicide-levers.

Jack - you are either very fortunate, or your normal brakes on your Moto were also toast. I had a 1981 Motobecane Grand Touring with the suicide-levers. They would slow you down, but only stop you, finally, after pulling on them hard enough to pop a wheelie. Off they went.