Immigration and Customs Enforcement submitted proposals for a license - plate tracking database . Database would have been able to see where a vehicle 's plate had been captured on camera . ( CNN ) -- Tool would have helped law enforcement find criminals , one proponent argues . Database would have violated the rights of innocent people , ACLU argues .
Immigration and Customs Enforcement submitted proposals for a license - plate tracking database . Database would have been able to see where a vehicle 's plate had been captured on camera . Tool would have helped law enforcement find criminals , one proponent argues . Database would have violated the rights of innocent people , ACLU argues .