In June, Google dropped the option to search the general web index from the Google News search box.
Google redesigned the Google News search box to add the ability to search the general web index.
Here is a screen shot:
As you can see, you can click on the last result in the suggestions, you will be taken to a general web search.
Plus, as short cut, you can hit the enter key to search Google News or Shift+Enter to search the web.