Johnson & Johnson (JNJ -1%) dips today on the back of its announcement over the weekend that it's recalling all bottles of Children's Tylenol it made and sold in South Korea, after finding high levels of acetaminophen, it's main ingredient. The company says it traced the problem to the failure of machines that fill the bottles at the end of manufacturing runs. Once they failed, some of the remaining bottles were filled by hand, leading to the improper concentrations. JNJ says the health risk is remote, and it hasn't received any reports of harm. The recall doesn't affect any products sold in the U.S.