Why Is President Peres Playing at Diplomacy?

I received this notice from President Shimon Peres' office:

Jerusalem, 23 May 2013

President Peres held a diplomatic meeting this evening with US Secretary of State John Kerry

President Shimon Peres, this afternoon (Thursday, 23 May 2013), held a diplomatic working meeting with US Secretary of State John Kerry on the Israeli-Palestinian peace process, the threat of a nuclear Iran and the strategic relations between Israel and the US. At the start of the meeting the two delivered joint statements to the press and then held a private meeting in the President's study... President Peres addressed Kerry's attempts to restart the negotiations between Israel and the Palestinians as well his efforts to end the bloodshed in Syria...

Why is Peres involved in diplomacy?

Why is he not being called to order? 

He did this a few days ago, too. 

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And he continues:

 

Jerusalem, 24 May 2013
President Peres held a diplomatic working meeting with British Foreign Secretary William Hague
President Shimon Peres, this morning (Friday, 24 May 2013), met with British Foreign Secretary William Hague. President Peres conveyed his condolences, and those of the State of Israel, for the attack yesterday in London. The two discussed the changes in the Middle East, ways to restart the peace process with the Palestinians, the Iranian nuclear threat, the situation in Syria and strategic relations between Israel and Britain. President Peres began by saying, "I'm really glad to see you here, you made your positions extremely clear on the major issue, on Iran, on terror, on the need to move forward with the peace process and we feel your friendship and understanding. I think our relations are in a good shape and I'm glad you added scientific cooperation to it. Trade and investment between our two countries is flourishing. Your visit is timely and important. In spite of all the difficulties the time is right for peace. I can see positive developments on our side, on the Palestinian side and on the Arab side. I think that Arab Initiative is a departure from a strategy of war to a strategy of peace, which is important. I see that quietly things are moving."...

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