<blockquote>
  <p><a href="http://globalguerrillas.typepad.com/">Global Guerrillas</a></p>
  <p><strong>Scale improvements.</strong> Bigger attacks, better results.</p>

  <p><strong>Symbol selection.</strong> The more dear the symbol attacked, the greater the impact.</p>

  <p><strong>Extended reach.</strong> The deeper inside a society's comfort zone a strike is made, the better the results.</p>
</blockquote>

<p><a href="http://globalguerrillas.typepad.com">global guerrillas blog</a> on the three metrics of terrorist attacks.</p>