One of the main security components along the U.S.-Mexico border is a system of 12,000 aging ground sensors. These sensors, however, cannot distinguish between human beings trying to cross the border, a grazing cow, or a pack of javelin – the wild boar that roams this area along the Rio Grande. DHS has so far spent billions on trying to find a technology which would better secure the border. The question that should be asked is why DHS has not adopted a proven system of sophisticated ground sensors, like the one which the U.S. Army has successfully deployed in Iraq and Afghanistan.

Wednesday’s Senate Judiciary Committee hearing featured testimony from DHS secretary Janet Napolitano and Jose Antonio Vargas, a former journalist who started the group Define American, which campaigns for immigration reform. The hearing focused largely on border security and enforcement, with an entire panel devoted to just one witness — Napolitano. Napolitano said that border security was often used as an excuse to prevent meaningful changes.

Two years ago, DHS cancelled SBInet, the ambitious Bush-era project to install advanced sensing technology along the border. The project was cancelled after more than $1 billion were spent on a few towers equipped with sensors which were built along a 28-mile stretch and the Arizona-Mexico border. Now CBP has put on hold one of SBInet’s successors, a project aiming to install sophisticated ground sensors along the U.S.-Mexico border.

Even supporters of immigration reform admit that security along the U.S.-Mexico border should be improved so that legalizing the status of the eleven million undocumented immigrants currently in the United States would not become a magnet for drawing even more undocumented immigrants into the country. How do we know, however, whether the border is secure enough for the legalizing process to begin? A bipartisan group of senators, known as the Gang of Eight, has an idea: under the terms of the bipartisan framework for immigration reform, DHS secretary Janet Napolitano would make the final determination about whether or not the border is secure. Once she makes the determination that the border is secure, the eleven million undocumented immigrants would start on their path to a legal status in the country.

The immigration reform debate continues to grab the headlines, and labor unions are now entering the ring,  hoping that organizing immigrant workers can boost the unions’ shrinking ranks.

A bill before the Arizona legislature aims to track how many undocumented immigrants are receiving free medical care at hospitals in Arizona. The bill would require hospitals to confirm a person’s legal presence in the country if the individual seeking care does not have insurance. If the staff thinks the patient is here illegally, they must notify authorities.

New research suggests that dual-identity immigrants — first-generation immigrants and their descendants who identify with both their cultural minority group and the society they now live in — may be more prone to political radicalism if they perceive their two cultural identities to be incompatible.

Four senators plan to introduce a more narrowly tailored immigration reform bill which focuses on increasing the number of temporary visas available for highly skilled immigrants. The bill would also free up green cards so more of these highly skilled immigrants could settle in the United States and eventually become citizens.

The majority of the guns used in drug-related violence in Mexico have come from the United States. Numbers from the Bureau of Alcohol, Tobacco Firearms and Explosives show that  almost 70 percent of the 99,000 weapons seized in Mexico in 2012 came from the United States. Mexican officials are hoping that president Obama’s speeches on changing the U.S. gun policy will be more than just talk.