By Ben Brumfield, CNN
(CNN) - The border with Mexico must be secure.
This requirement is the cornerstone of an immigration reform bill a bipartisan group of senators are to file on Capitol Hill on Tuesday. There will be no path to legal residency for migrants without it.
Undocumented immigrants may also not reach the status of fully legal residents under the proposed legislation, until the Department of Homeland Security has implemented measures to prevent "unauthorized workers from obtaining employment in the United States."
The bill drafted by the "Gang of Eight" senators stipulates that the security of "high risk border sectors along the Southern border" must be verified, before most undocumented immigrants can access pathways to legal residency laid out in the proposed legislation.
The bill makes exceptions for those eligible for the DREAM Act, law-abiding immigrants who arrived in the United States as minors and completed high school in the country. It also includes allowances for certain agricultural laborers.FULL STORY