Mid/rear Seats Assembly problems of the 2002 Honda Accord

I was involved in an accident where I was rear ended on a highway at a fairly high speed. Both my seat back and the empty passenger seat back collapsed into the back seat before being thrown forward where I was above the steering wheel close enough that I could see that my eyes were about two inches from the windshield and then I was then thrown back again to the laying down position of my seat. In my peripheral vision I could see the seat back of the empty passenger seat doing the same thing as my seat. This appears to be a safety issue especially because I have two car seats in the back seat for my infant and toddler that where thankfully empty at the time. In order to get out of my car I had to return my seat to the upright position which I was suprisingly able to do using the automatic button. This appears to be a safety issue. As a side note: three weeks prior to the accident my seatbelt was replaced under a warranty and the rest of my safety devices found to be in good working order by the dealership.