According to Robert Halfon, the government should______.

(8)MPs are set to debate a motion urging the British government to stem fuel price rises amid a public outcry over costs.
    Tory MP Robert Halfon’s motion was tabled in response to an e-petition signed by more than 100,000 people and is supported by more than 100 MPs.
    The government plans to increase fuel duty by 3p a litre in January—meaning an extra ￡1. 50 to fill an average car. Petrol prices have tripled in the past two decades, but ministers say prices would be even higher had ministers not scrapped automatic fuel-tax increases imposed by Labour.