Conway has been the most vociferous in expressing the concerns he shares with the other chiefs of the Army, Navy and Air Force about engaging in social experimentation that risks breaking the only armed forces we have during wartime.

CENTERFORSECURITYPOLICY: Send away the Marines?

"The sanctions will force a choice between buying Iranian oil or engaging in the US financial system, the largest in the world, " said Brian Katulis of the Center for American Progress.

BBC: Iran's rial slides against US dollar on fresh sanctions

His enthusiasm for this idea goes back at least to 2004 when he co-chaired with Zbigniew Bzrezinski a task force of the Council on Foreign Relations that endorsed "engaging" Iran.

CENTERFORSECURITYPOLICY: Iraq Surrender Group

The problem has been exacerbated by the fact more than half the facility's inmates engaging in various forms of hunger strike, more than 20 of them being force-fed.

CNN: SHARE THIS

"We cannot secure safer communities on our own and I will also be engaging with a range of partners to increase our capability to protect everyone in our force area, " he said.

BBC: Dyfed-Powys PCC: People power 'fuels anti-crime drive'

Throughout the tour, as he's crisscrossing the country, he'll spend time on Air Force One calling undecided voters, rallying national team leaders and volunteers, and engaging with Americans across the country and reminding them of what's at stake in this election.

WHITEHOUSE: The White House

He argued that the congressional authorization to use military force allows such surveillance since intercepting an enemy's communications is a key part of engaging in war.

CNN: Justice Department offers legal basis for wiretaps

"MSF is currently engaging with all relevant actors to seek the safe and swift release of our colleagues and any use of force could endanger this, " Mr Bastos said.

BBC: French hostage Marie Dedieu held in Somalia dies