False Sense of Airport Security?

Just recently I was flying and noticed a potential flaw in our airport security system. On my way to my gate after the security checkpoint I stopped off at Brokstone, one of the many shops at my airport. In the store I realized how many of their products could be used as potential weapons. I mean if prison inmates can construct weapons out of toothbrushes and other random objects, im sure a terrorist could do the same with a huge assortment of products and gadgets at their disposal.
That got me further thinking about if the products are screened like our carry-on’s for dangerous objects that may have been smuggled in Via a product. Anyways, I want to know your opinion, regarding my thoughts on the subject.