article_snippet: Lausanne, Switzerland
article_snippet: German and Chinese foreign ministers were expected late Sunday.
article_snippet: Diplomats say the first 10 years of the deal would have the most stringent restrictions, with others being relaxed over the next five.
article_snippet: We will see if they are ready to swallow what We proposed," a Western diplomat said.
article_snippet: But a Western diplomat added, "after 15 years, they can do what they want.
article_snippet: CNN's Jim Sciutto contributed to this report.