Why do Mexican immigrants need a green card?

Answer 1

Every immigrant needs a green card. It is a document which allows you to legally live in the country and get a job. I'm an immigrant too by the way. A United States Permanent Resident Card, known popularly as Green Card, is an identification card for a permanent resident of the United States of America who does not have U.S. citizenship. It is proof that the holder has permission to permanently reside and take employment in the U.S. Its former official title was Alien Registration Receipt Card, and it is now officially called a Permanent Resident Card, also referred to as form I-551. The name "green card" comes from the fact that the predecessor form, I-151, was printed on green paper. Form I-551 was adopted in 1977 and has been printed on paper of various colors, none of which were green, but the term "green card" has nonetheless remained in use. As of 2006, the card is mostly white and the only prominent green feature is the lettering on the back. A card includes the holder's name and photograph, and other information, and has been updated over the years with numerous anti-counterfeiting devices. The card must be in the possession of the U.S. permanent resident at all times. This means the U.S. permanent resident must have a currently valid card on their person at all times, to show to a USCIS officer, if requested. One interesting aspect of American law is that permanent residents are required to carry identification cards, but citizens are not. This is because citizens are entitled to more constitutional rights than permanent residents, who are still classified as aliens. Before Sept. 11, 2001, while status was checked when one returned from foreign travel, the requirement to carry the green card was practically never enforced when the resident was traveling domestically. After Sep 11, 2001, officials from the US Department of Homeland Security began to occasionally ask people if they were US citizens or not, and in the latter case require that the person present their Permanent Resident Card or other proof of legal status. Green Cards were formerly issued by the Immigration and Naturalization Service (INS). That agency has been absorbed into and replaced by the new U.S. Citizenship and Immigration Services (USCIS), formerly the Bureau of Citizenship and Immigration Services (BCIS), in the Department of Homeland Security. If an alien wants to work while his application for a green card is pending, an Employment Authorization Document (EAD) is needed.

Answer 2

They need a green card so no one can come and tell you to get out of the us. Especially if you are an immigrant and it is proof that you are a permanent resident. You can now go to places like Canada, India, Kansas etc.