Guwahati, Nov 30 (ANI): Prime Minister Narendra Modi on Sunday addressed a conference of DGPs and IGPs in Guwahati city of Assam. Modi said that during and after independence, thousands of policemen sacrificed their life and they should be remembered by the nation. He also said that all states should come out with an e-book with the list of names of police martyrs. Modi also said that potential lies not in the weapon but the one who is carrying it.