President of the Senate, Ahmad Lawan, has described insecurity as the  Nigeria’s biggest challenge that must be prioritised and tackled head-on through constant engagement between the Executive and Legislature. Lawan, who stated this on Tuesday in a speech delivered to welcome Senators back from their two-month annual recess, however, demanded quick implementation of the Petroleum Industry Act, passed and signed into law some weeks ago. Also, disturbed about the increasing insecurity across the country, President Muhammadu Buhari, has sent two bills on the Control of Small Arms, Light Weapons and Explosives in the country to the National Assembly for necessary consideration and passage. But the Nasarawa State Governor, Abdullahi Sule, has said the successes being recorded against banditty in Niger, Zamfara, Kaduna and other neighbouring states in the North West posed a threat to peace in Nasarawa State. Addressing his colleagues, Lawan said, efforts must be made to sustain the fight against insecurity by ensuring adequate funding for security agencies in the 2022 budget to be submitted by President Muhammadu Buhari later this month to the National Assembly for consideration.