President Barack Obama

Chemical weapons movement would be a 'red line' for president that would change everything.

South American Union emphasises rights of embassies, while Assange tells US to end WikiLeaks witch-hunt.

Reforms to health insurance legislation provides cover for an extra 50 million Mexicans.

Mitt Romney running mate mocked in attack ad that accuses him of ending guaranteed Medicare health insurance for pensioners.

Researchers at Kaspersky Labs have asked mathematicians and cryptographers to help crack the Gauss malware encryption.

Thomas Caffall, who has history of mental health problems, opens fire on policeman serving eviction notice on him.

Some of the biggest names in British music, including Spice Girls and George Michael performed.

Saudi Arabia will intercept any Israeli air force aircraft crossing en route to Iran, Washington warns Israel.

After a pleasant lull, celebrity death hoaxes on social networking Web site Twitter seem to be making a comeback. This time they targetted pregnant actress Reese Witherspoon

Wide-ranging video by Boko Haram leader Abubakar Shekau dismissed by Jonathan as blackmail.

Gunman who killed six Sikhs before being shot dead may have mistaken them for Muslims.

Under the deal, South Sudan will pay around $10 per barrel in pipeline transit fees to Sudan.

US coordinating with secret command centre operated by Turkey and allies to provide support to Syrian rebels.

Mitt Romney in Poland as part of three-nation tour to project himself as world leader and alternative to Barack Obama.

Palestinians fuming at US Republican presidential candidate MItt Romney for his remarks on Israel's economic efficiency.

The Republican presidential nominee is taking an aggressive line against Iran because he sees an existential threat to Israel.

Obama to sign Enhance Security Cooperation Act, giving Israel more firepower and access to US spy satellite images.

US president takes election year risk by raising issue of gun control in wake of Aurora cinema slaughter.

Syria, which has the fourth largest stockpile of chemical weapons in the world, says it will use them only in cases of external aggression.

Prosecutors seek death penalty for man accused of killing 12 and injuring more than 50 during Dark Knight Rises screening.

US President Barack Obama meets survivors and families of Aurora cinema gun rampage victims.

The Aurora incident is just the latest in a series of shootings in the US, yet neither political party is prepared to risk making an issue out of gun control.

Brother of Jessica Ghawi, known to online sports fans as Jessica Redfield, confirms death in Century 16 cinema shooting in Aurora.

Flat belonging to man believed to have shot dead 12 Batman fans in Colorado cinema said to be booby-trapped.

Former US President Bill Clinton visited Mandela at his Qunu home.

With the whole world moving online, AlienVault's Dominique Karg looks at teh threats posed by digital pirates on the internet's high seas.

George Obama lives in Nairobi slum and believes in self-help and respect for one's parents - core values of the American right.

Violence disrupts polling in some locations in oil-rich east Libya as the region fears under-representation in the 200-seat assembly that is to be formed.

The missile test was part of the Great Prophet 7 exercise, a three-day military drill to test the precision and efficiency of Iran's warheads and missile systems.

The High Park fire was believed to have been caused by lightning, but the reasons for the Colorado Springs fire remain under investigation.