TSC: This weeks date of course marks 15 years since the twin towers demise. So this weeks challenge is...TWINS
or "similarity -- two or more objects in one image connected to each other"

Fifteen years ago our world changed forever with the terrorist attack that felled the mighty twin towers of the World Trade Center. Members of the New York City Police and Fire Departments were the brave first responders who saved many lives even as they compromised their own on that fateful day. I kept the above items displayed on my desk at work during the days following the attack. The glass etching of the World Trade Center was purchased at Ground Zero, and the bears were found at a rest stop along the New Jersey Turnpike.

Another version of this tribute in the note...