Welcome back to the Sinica Podcast, a roundtable on current affairs in China featuring China-watchers from a wide range of backgrounds. In this week's installment host Kaiser Kuo talks about China's delicate maneuvering in the Middle East, as well as the recent health scandals to emerge around the vaccination of children in Shanxi and Jiangsu. Our guests this week include Bill Bishop, a tech entrepreneur and blogger at DigiCha.com and Sinocism.com, along with public relations expert William Moss, who writes the blog Imagethief.com.This week: how should we interpret signs that China may be preparing for an about-turn on Iranian sanctions? Have recent Israeli visits hardened Beijing's position, or are we seeing quid pro quo linked to American pressure on currency manipulation and upcoming nuclear disarmament talks? And what is going on with the vaccination crises in Shanxi and Jiangsu? Are we seeing the first stages of another major public relations crisis, or does evidence point to this blowing over quickly?Be sure to give us your take on things either in the comment section, or by writing us at email@example.com. And two extra notes. First, remember that you can download all of our Sinica podcasts through iTunes automatically by subscribing using our special RSS feed for the show. To get things working, open up iTunes, click the "Advanced" menu and select "Subscribe to Podcast". When prompted, copy the URL "http://popupchinese.com/feeds/custom/sinica" into the box. Secondly, if you'd prefer to listen to this podcast elsewhere than through our onsite flash player, you can download this podcast as a standalone mp3 file.