CNN – When debris rained from the sky in lower Manhattan on September 11, 2001, the first responders to the terrorist attack did not turn away. They rushed to the World Trade Center buildings while the world around them crumbled. Yet now, after all the wreckage has been cleared and the rebuilding has begun, their path is again blocked — not by flying chunks of smoldering rubble, but by space constraints.

The first responders are not invited to this year’s September 11 memorial ceremony at ground zero, New York City Mayor Michael Bloomberg’s office confirmed Monday. It’s a painful insult for many of the approximately 3,000 men and women who risked their lives, limbs and lungs on that monumental day, puncturing another hole in a still searing wound.

In a statement, Bloomberg spokesman Andrew Brent said the commemoration ceremony is for the victims’ families. “While we are again focused on accommodating victims’ family members, given the space constraints, we’re working to find ways to recognize and honor first responders, and other groups, at different places and times,” Brent said.

But first responder John Feal, founder of an advocacy group for the police officers, firefighters, civilian volunteers and others who worked at ground zero, assailed Brent’s response, saying Bloomberg “lives in his own world.” “The best of the best that this country offered 10 years ago are being neglected and denied their rightful place,” Feal said.

Denise Villamia, a first responder who worked at ground zero for several months, cried over the phone as she recalled her “totally heartbroken” reaction to the news that she could not attend the memorial service. “I’m crying because it’s really a big betrayal on the part of the city, to rob me from my way to pay homage and to find that comfort and healing,” she said. “I feel that I have been robbed of my way to pay tribute.”

Space constraints, riiiiight. Does the phrase “No good deed goes unpunished” spring to mind? First responders are indeed, real-life heroes and deserve to be celebrated. Along with 24 hour fire watch guards, they help protect our lives and properties.