title: Can CultureInfo.CurrentCulture ever be null?
body: <p>Can CultureInfo.CurrentCulture ever be null?</p>
  
  <p>A null value would crash my program, which I don't want. So I'm asking, to be safe, do I need to do?</p>
  
  <pre><code>var culture = CultureInfo.CurrentCulture ?? CultureInfo.InvariantCulture
  </code></pre>