Once again, this is a key missing piece in the quest for ultimate value delivery in the core search engine business model.

FORBES: Paying With Your Data: The Real Promise Of Mobile Wallets

Whilst there, Quest spoke to one of the key members, the former U.S. president Jimmy Carter, also a Nobel Peace Prize laureate.

CNN: Quest for peace

The quest to lift stringent sanctions is a key issue for Mr Maliki on his US trip, says the BBC's Jon Donnison, in Washington, adding that the Iraqi prime minister visited the US on Wednesday morning to press his case.

BBC: Iraq and US vow renewed alliance