U.S. law allows Mexican minors to be sent back promptly, although there are some steps those children can take to try to remain in the United States. A 2008 victims trafficking law [William Wilberforce Trafficking Victims Protection Reauthorization Act of 2008 that passed both houses unanimously.] requires that children from countries not bordering the United States, including those in Central America, be given added legal protections before they are deported. (http://www.reuters.com/article/2014/07/10/us-usa-immigration-idUSKBN0FF27Y20140710)
Many now are eager to ditch the 2008 law, and make it more like how we treat Mexican children. Interestingly, conservative columnist George Will thinks we should keep them:
"My view is that we have to say to these children, 'Welcome to America. You're going to go to school and get a job and become Americans,'" Will said. “The idea that we can't assimilate these 8-year-old criminals with their teddy bears is preposterous." (https://mail.google.com/mail/u/0/?shva=1#inbox/1477de74f088e21e)
Cuban immigrants (estimated to be around 825,000 over the years), for example, have a special status as since 1995 there is no such thing as an illegal Cuban immigrant:
http://www.pewhispanic.org/2013/06/19/hispanics-of-cuban-origin-in-the-united-states-2011/
Cuban immigrants history: http://en.wikipedia.org/wiki/Cuban_American
Unlike most Hispanics, Cuban immigrants tend to be Republican since the failed Bay Of Pigs invasion when many Cuban immigrants blamed a lack of air cover for failure of the invasion on John Kennedy. (http://en.wikipedia.org/wiki/Cuban_American)
When was the largest wave of immigrants from Cuba to the United States?
1959 – 1960 – 250,000 Cuban immigrants arrived
1965-1973 – 300,000 Cuban immigrants arrived
1980 – 125,000 Cuban immigrants arrived
Present Immigration continues at a high rate
1965-1973 – 300,000 Cuban immigrants arrived
1980 – 125,000 Cuban immigrants arrived
Present Immigration continues at a high rate
(http://www.energyofanation.org/Waves_of_Cuban_Immigrants_6_29_06_3_51_PM.html; http://www.pewhispanic.org/2013/06/19/hispanics-of-cuban-origin-in-the-united-states-2011/ )
(http://immigration.about.com/od/immigrationlawandpolicy/a/U-S-Allows-Cuban-Migrants-Different-Treatment.htm)
Although it is a rather old account, a very interesting documented study is: http://latinamericanstudies.org/exile/cubans.pdf