The importance of a hyphen

In this article, Bill Harnsberger states

Number of states with no-texting-while-driving laws: 46

So, in how many states is it a crime to send a text while driving a car?  If you don't notice the hyphen shown in green above (nor the fact that 'laws' is plural), it seems there are 46 states that lack a texting-while-driving law.  With the hyphen, there are only four such states (Alabama, Alaska, Arizona, and [if you're over age 20] Arkansas).

The h-y-p-h-e-n is a very important punctuation mark!