volvos, two cadillacs, and the mercedes c-class were rated "s," superior, with the legacy and outbarra outback, earning the best scores. nearly a third of all accidents in the u.s., are rear-end collisions, causing 31% of the injuries linked to car crashes. a prime reason more automakers are pushing this technology. >> safety sells. and it is actually required in a lot of the premium markets that you absolutely have to have the latest safety content going forward. >> reporter: these systems typically cost more than $1,000. well worth it for those who have the technology in their cars. phil lebeau, "nightly business report," charlottesville, virginia. >>> and we begin market focus tonight with a warning from the world's largest air carrier. continental projecting third quarter revenue to come in below expectations. the company says lower fares on some overseas flights are responsible in the drop in price per seat mile. the stock fell 9% to $30.91. and shares of lumber liquidators were briefly halted this morning after the company said that federal agencies had raided its headquarters. a court-o