Wordpess SEO by Yoast v1.2.2
ISSUE NO.1: The Google News sitemap isn't being generated. No sitemap at
http://example.com/news_sitemap.xml (You can replace
whatthenerd.com to see it for yourself.)
ISSUE NO.2: The "Google News" tab under WordPress SEO by Yoast widget in the post editor is missing!
So, basically, it looks like the News Sitemap module for WordPress SEO by Yoast is incompatible with the latest version of either the plugin (v1.2.2) or WordPress (v3.4)
Please take a look at this Joost, thanks!