Military launches largest border security operation ever ahead of mega events such as next year's football World Cup.
A visit from the new pope may be an honour for local Catholics, but it poses unique and complex security concerns.
Rescue efforts continue in Oklahoma as shaken residents watch the skies amid forecast of more storms.
While the US media is focused on the latest political scandal, civil rights in the United States continue to be eroded.
Illegal human trafficking is a serious problem in the US, and is growing.
Authorities worry that criminals will get hold of printing machines and make their own weapons.
Every day, the crossing at Douglas in Arizona sees dozens of children cross from Mexico heading to school in the US.
Court issues last minute stay of execution for Willie Manning, who was convicted of killing two students in 1992.
Prison's status remains a conundrum both for the detainees' sense of justice and for legal and moral authority of US.
A lack of mental health services hurts the homeless in the United States
According to US government figures, more than a million school aged children are without shelter.