Walmars are among the top sellers in the U.S., according to a new study.
Walmart announced Monday that it would sell its fishing poles and fishing line in its stores by the end of 2018.
Walmarts have become popular targets for the Islamic State group after they opened in the Middle East.
ISIS has taken advantage of the threat posed by the U,S.-led coalition that has been battling the group in Iraq and Syria.
In 2016, the U