Here is a picture of the see-through FBI model:
<a href="https:&#x2F;&#x2F;www.fbi.gov&#x2F;news&#x2F;stories&#x2F;2009&#x2F;november&#x2F;fbi-technology-expo&#x2F;tech-expo-gallery&#x2F;model-of-harveys-bomb" rel="nofollow">https:&#x2F;&#x2F;www.fbi.gov&#x2F;news&#x2F;stories&#x2F;2009&#x2F;november&#x2F;fbi-technolog...</a><p>and an explanation of the triggers
<a href="https:&#x2F;&#x2F;dh1rvgpokacch.cloudfront.net&#x2F;atavist&#x2F;1&#x2F;video&#x2F;iphone&#x2F;animationw-1406828466-38.mov.mp4" rel="nofollow">https:&#x2F;&#x2F;dh1rvgpokacch.cloudfront.net&#x2F;atavist&#x2F;1&#x2F;video&#x2F;iphone&#x2F;...</a>