Officer Robert Powell delayed Texans Runningback Ryan Moats and his wife as mother-in-law Jonetta Collinsworth died in hospital.

Bulletproof jackets do not turn security guards, police officers and armed forces into Robocops, repelling the force of bullets in their stride. New research in carbon nanotechnology however could give those in the line of fire materials which can bounce bullets without a trace of damage.

Sleep disorders are common, costly and treatable, but often remain undiagnosed and untreated. Unrecognized sleep disorders adversely affect personal health and may lead to chronic sleep loss, which, in turn, increases the risk of accidents and injuries. These problems are exacerbated in shift workers such as police officers, who may experience chronic sleep loss due to their schedules.