Everybody in America is concerned about what happened at the Boston Marathon earlier this week. People are dead, families are grieving, and Americans are struggling to comprehend why it all happened. Many are asking questions like "How could this have been prevented? And what can we do to make sure that no more lives are lost from tragedies like this?"

In the case of the Boston Marathon bombings, those questions don’t have easy answers. But if you ask those same questions about two events that (when combined) were almost as deadly as the Boston blasts, the answer is much clearer: "Don’t drink and drive."

On Sunday evening around 7:45pm, a Nissan Altima slammed into the back of a Toyota RAV4 on Volunteer Boulevard near the intersection of Executive Airport Drive in Henderson, and then crashed head-on into a Toyota Camry. A passenger in the RAV4 was injured, as were the driver of and a passenger in the Camry. In addition, a 68-year old female passenger in the Camry later died from her injuries. The 36-year old man who drove the Altima tried to flee the scene on foot before being apprehended.

Then on Monday night around 11:30pm, a 41-year old man driving a Jeep Wrangler on Blue Diamond Road in Las Vegas ran a red light at Decatur Boulevard. His SUV slammed into the driver’s side of a Hyundai that was turning left from Decatur onto Blue Diamond. The 57-year old man who was driving the Hyundai died on his way to the hospital.

Both the 36-year old Nissan driver and the 41-year old Jeep driver were arrested by police on charges of driving under the influence.

It’s perfectly okay to feel sad about the victims of the Boston tragedy. But as the old saying goes, it’s pointless to worry about events over which we have little or no control. In contrast, we can do something about tragedies like drunk driving accidents. Will you do your part?