October, 14,2015, I was traveling on route 66 to Manassas at 4.15pm.in my Toyota Prius. (I love Toyota Prius). We were crawling and stopping intermittently.in one of those conditions a Jeep in front of me stopped again and I stopped also. After few minutes, there was a Big Bang at my rear. A vehicle crashed my car. My car skidded and crashed into the Jeep ahead and the Jeep crashed into another car. My car was totaled. The airbags did not deploy. Why?