Lawyers for Gov. Jan Brewer have filed a legal brief to a federal appeals court. They are seeking to have the injunction against key parts of the Arizona immigration law, SB 1070, lifted.
President Obama signed a $600 million border security bill Friday that pays for 1,000 new Border Patrol agents. Will it give him enough political capital for immigration reform?
Fingerprint-sharing program aimed to deport of the 'worst of the worst' criminal immigrants, but about a quarter of those deported did not have criminal records.
In the event of a nuclear attack, US nuclear scientists would have a hard time tracking down the source and characteristics of the nuclear material, a panel of experts found.
Allowing all illegal immigrants 'safe passage' out of the country is one proposed solution to the tangle of problems presented by federal immigration reform and the Arizona immigration law.
A NASA task force says the space agency should make protecting the planet a strategic goal.
Recent arrests of Muslim men in terrorism plots lead some adherents to ask if they need to approach risks of homegrown jihadists with more urgency.
Hamas spy: Mosab Hassan Yousef says he will be killed if he is deported from the United States to the West Bank.
Illegal immigration is the target of a new Homeland Security project that will use unmanned aerial vehicles, or drones, to protect the southern border of the United States.