We've previously blogged about the dangers of texting while driving, and accidents caused as a result. If the risk of injury is not enough to dissuade drivers from the practice, two recent criminal cases in which drivers got significant jail time for causing accidents in which other drivers were killed should convince you to think twice. In California, a woman who slammed into a line of vehicles while text messaging on her cell phone was sentenced to six years in prison for killing a woman whose car was rear-ended and exploded in flames. And in Pennsylvania, a driver accused of text-messaging just before a crash that killed a pedestrian has been sentenced to 10 to 23 months in prison.