The two men arrested on charges of illegally purchasing cell phone SIM cards, using fake identity papers, will be questioned by police who want to know whether they sold cards used by the Mumbai gunmen, according to Calcutta Deputy Police Commissioner Jawad Shamim.

CNN: Two suspected of ties to Mumbai attackers' cell phones

If voted into law, the Stop Illegal Trafficking in Firearms Act of 2013, would slap anyone caught purchasing a firearm or ammunition with the intent of illegally transferring it to someone else with jail time and a large fine.

CNN: Bipartisan bill would punish gun trafficking