It's certainly concerning to me, not only as the PBO but as a taxpayer, when I hear there is a possibility that fraud or abuse of government benefits would not be countered or would not be closely monitored.
That said, in our cost estimates we don't factor in fraud or the abuse of systems. We make various assumptions as to the number of individuals who would be eligible for these benefits, but we don't top up our estimates to take into consideration abuse or fraud.