Follow The Money: http://www.freerepublic.com/focus/news/3250022/posts?page=3#3
"....The transcripts indicate a secret meeting in Aleppo, Syria, in January 2011 between Argentinian Foreign Minister Héctor Timmerman and his Iranian counterpart at the time, Ali-Akbar Salehi, during which Timmerman suggested that Argentina would no longer be interested in investigating the AMIA attack if Iran were willing to supply the country with inexpensive oil....
...The Aleppo meeting was followed by another in which a team of Argentinian negotiators tried, unsuccessfully, to exchange the immunity of the Iranians involved in the attack for much-needed oil....
....Argentina has a severe, ongoing energy deficit that directly impacts the country’s trade and economy," Leah Soibel, the executive director of the Jerusalem-based non-profit group Fuente Latina, told FNL. "The deal in question would have been mutually beneficial. Argentina desperately needed to increase its oil imports. Iran wanted Nisman’s investigation and Interpol warrants against Iranian leaders accused of involvement in the AMIA attack to come to an end....
...While Nisman made clear that no deal for oil with Iran ever reached fruition – a move that could have triggered hefty U.S. sanctions – but business between the two countries ramped up with reports indicating that the annual trade volume between the two countries, while insignificant in previous decades, now stands at more than $1 billion a year. ...
...Some observers believe that Nisman was killed, despite the damning information released in his report, because he had even more explosive information that could force Argentina to prosecute the Iranian agents involved in the AMIA bombing ... and to derail the lucrative trade between the two countries..."
It's Always About The Money.
Never mind such deaths never covering up, but exposing further.
If Argentina really has an energy deficit, it could make a deal with the UK. Tell the UK that they will not impede oil exploration around the Falklands/Malvinas/what have you. Argentina would set up support facilities on the mainland - platform fabrication, major equipment servicing, logistics. Yes, Argentina has shipyards.
But that would be a marketplace solution, and not a political solution.