The Google NewsShow widget enables you to access Google News headlines right from your blog. It enables you to embed the news slideshow anywhere on the web-page to let your users see the headlines for the category or new section selected by you. It is fairly simple to add Google News Widget. Copy and paste the following code to the text widget:
<iframe src="http://www.google.com/uds/modules/elements/newsshow/iframe.html?topic=e,p,s,n&rsz=small" frameborder="0" width="728" height="90" marginwidth="0" marginheight="0"></iframe>
You can also customize the code by selecting the size of the frame, section, number of news in the result set and so on. Google Web Elements offers the News Element Wizard which enables you to customize the settings and generates the code as per the settings you choose.
WordPress Support, Code Snippets