Relations between the US and al-Jazeera have come under increasing strain - particularly after al-Jazeera broadcast pictures of American casualties and prisoners of war, and US forces bombed al-Jazeera's Baghdad office killing one journalist.
Bashar Fahmi, a Jordanian reporter working for the US-funded al-Hurra TV network, was last seen in one of Yamamoto's TV reports, when he was sitting behind her.
BBC: Syria conflict: Japan reporter Mika Yamamoto flown home
The fact that Iraqi Prime Minister Nouri al-Maliki felt it necessary to condemn the joint US-Iraqi attack against al-Sadr's forces in Baghdad Tuesday is a testament to al-Sadr's power.
The Sahwa - or Awakening Council - are comprised of Sunni tribal members who sided with the US against al-Qaeda in 2006.
As a Principal Lead Author with the Inter-governmental Panel on Climate Change, he shared the 2007 Nobel Peace Prize with former US Vice-President Al Gore.
Between 1999 and 2006, Mr al-Fawwaz and Mr Bary were indicted on various terrorism charges in the US, with Mr al-Fawwaz accused of involvement in, or support for, the bombing of US embassies in Nairobi, Kenya, and Dar es Salaam, Tanzania, in 1998.
They were inspired by former US Vice-President Al Gore and were intended to raise awareness of climate change.
In public remarks last week, UAE Ambassador to the US Youssef al-Otaiba made a series of statements whose bluntness was unprecedented.
In 2007, he was recognised for his work as a Principal Lead Author of the Intergovernmental Panel on Climate Change (IPCC), sharing the Nobel Peace Prize with former US Vice-President Al Gore.
Al-Nusra is deemed a terror group by the US as an alias of al-Qaeda in Iraq.
With the arrival of a CNN producer to run Al Hurra, the US-funded Arabic-language satellite TV channel has become "more like Al Jazeera, " Joel Mowbray writes in the Wall Street Journal.
CENTERFORSECURITYPOLICY: WSJ: ��Al-Hurra more like al-Jazeera��
Imad al-Din Adib in the pan-Arab Saudi-owned Al-Sharq al-Awsat agrees that the killing of the US ambassador and three of his aides "is a humanitarian and political catastrophe" with implications for "Washington's ties with the region as a whole".
BBC: Anti-Islam film: Press views on West and Muslim world ties
Defence lawyers said the al-Nusra Front shares the US government's opinion that Syrian leader Bashar al-Assad must go.
BBC: Ex-US soldier who 'fought in Syria' could face execution
The first mention of Abu Ahmed al-Kuwaiti the nickname of the al-Qaeda courier who ultimately led us to bin Laden as well as a description of him as an important member of al-Qaeda, came from a detainee held in another country, who we believe was not tortured.
FORBES: Update - McCain: Torture Didn't Help Locate Bin Laden
In an earlier speech at the Pentagon, Vice-President Joe Biden praised the US soldiers who had killed al-Qaeda leader Osama Bin Laden in Pakistan in May of this year.
BBC: 9/11 anniversary: Sombre US honours victims 10 years on
According to the US, Saif al-Adel's father-in-law, Mustafa Hamid, is the link between al-Qaeda and the Iranian government.
Saleh was willing to collaborate with the US in combating al- Qaida and other jihadist forces in his country.
Analysts say the US has wanted al-Shabab banned from Twitter for some time, but lacked the legal means to enforce its will.
At least three suspected al-Qaeda militants have been killed by a US drone strike in Yemen's south-western al-Bayda province, say local officials.
The memo says, among other things, that Iraq and Afghanistan will be a "long, hard slog", and that the US record against al-Qaeda is mixed.
The US has put al-Nusra on a blacklist of terrorist organisations.
"You see our demands are so easy, so easy if you want to negotiate with us, " al-Nigiri said in the recording broadcast by Algerian television.
Our absence from the fight is going to cost us if the al-Assad regime fails, leaving rebel groups like al-Nusra dictating the direction, pace and scope of a new Syria.
Jordanian intelligence believed they had brought Humam al-Balawi over to their side and sent him to Afghanistan to infiltrate al-Qaeda, US network NBC says.
We're negotiating an agreement with the Afghan government that focuses on two missions - training and equipping Afghan forces so that the country does not again slip into chaos, and counter-terrorism efforts that allow us to pursue the remnants of al-Qaeda and their affiliates.
Mr Obama reiterated the US goal of destroying the remnants of al-Qaeda, and said the US had come close to achieving that.
BBC: US troops will end 'most' Afghanistan combat this spring
Syria's rebel al-Nusra Front recently pledged allegiance to al-Qaeda and is on a US terror blacklist.
BBC: Syria crisis: Bashar al-Assad says West will 'pay price'
In May 2008, Sgt Petry's unit of elite Army rangers approached a house in Paktia province in eastern Afghanistan which intelligence suggested held high-value al-Qaeda officials, the US military said.
BBC: Afghanistan veteran Leroy Petry given US Medal of Honor
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