On the supportive side of the issue, it is argued that living illegally in the United States is civil infraction, and that this bill merely aims at re-cementing U.S. immigration codes that have long been neglected by changing the seriousness of the infraction from a civil to a criminal one. Supporters of the bill argue that it will increase border security by providing more US Immigration and Customs Enforcement agents to the border, thereby helping to curtail any possible entry to the country by terrorists, and that the passage of this bill may help curtail drug trafficking and human trafficking from Mexico to the US by depriving smugglers of sources and contacts on the US side of the border.