Read More:
Many kids still exposed to secondhand smoke in cars
http://www.reuters.com/article/2012/02/06/us-secondhand-smoke-idUSTRE8150HA20120206
"A new government study reports that while fewer kids and teens are getting exposed to secondhand smoke while riding in the car, rates of exposure are still high enough to warrant concern."

Smoke-Free Rules and Secondhand Smoke Exposure in Homes and Vehicles Among US Adults
http://www.cdc.gov/pcd/issues/2013/12_0218.htm
"An increasing number of US states and localities have implemented comprehensive policies prohibiting tobacco smoking in all indoor areas of public places and worksites."

Secondhand Smoke Levels Higher in Cars than in Bars or Restaurants
http://www.jhsph.edu/news/news-releases/2009/navas-acien-car-smoke.html
"The concentrations of secondhand smoke are significantly higher in cars than concentrations generally measured in bars, restaurants and other public places that allow smoking, according to a study by researchers at the Johns Hopkins Bloomberg School of Public Health."

Secondhand Smoke, Kids and Cars
http://www.tobaccofreekids.org/research/factsheets/pdf/0334.pdf
"Recent action by several states and territories to prohibit smoking in privately owned vehicles while children are present has brought significant attention to the issue of the risks to children associated with exposure to secondhand smoke, particularly in vehicles."

Large majority of adults have smoke-free rules in homes, vehicles
http://www.cdc.gov/media/releases/2013/p0516-smoke-free-rules.html
"Four out of five U.S. adults report having voluntary smoke-free rules in their homes and three out of four report having voluntary smoke-free rules in their vehicles, according to a study published in the journal Preventing Chronic Disease, a publication of the Centers for Disease Control and Prevention."

82 percent of adults support banning smoking when kids are in the car
http://www.uofmhealth.org/news/archive/201307/82-percent-adults-support-banning-smoking-when-kids-are-ca-0
"A new poll shows 82 percent of adults support banning smoking in cars when children under 13 are riding in the vehicle."

Why is second-hand smoke more dangerous in cars?
http://www.smokershelp.net/Files/16_Category/FAQ_s.doc
"Breathing in second-hand smoke anywhere is harmful to anyone's health. However, breathing in second-hand smoke inside a car is even more dangerous."

Poll: U.S. Adults Support Smoking Ban in Cars With Kids
http://health.usnews.com/health-news/news/articles/2013/07/23/poll-us-adults-support-smoking-ban-in-cars-with-kids
"Eighty-two percent of American adults support banning smoking in cars when children younger than 13 are in the vehicle, according to a new survey."

Watch More:
Banning Supersize Sodas:
http://testtube.com/dnews/dnews-200-would-a-soda-ban-help
Stop Killer Robots:
http://testtube.com/dnews/dnews-285-the-plan-to-stop-killer-robots
Joe DiMaggio's Hitting Streak: http://testtube.com/joshandchuck/this-day-in-history-joe-dimaggio-hitting-streak