Q. I need articles on marijuana legalization.

Opposing Viewpoints is the best databases for that.

• CQ Researcher has several reports on this topic. Each CQ Researcher full report has a pro and con section, look to the left side side of the article on clikc on Pro/Con to get it. Short reports don't inlcude a pro/con section.
• Opposing Viewpoints has a topic page for marijuana, (this link might be slow) which includes videos, images, news, academic journal articles, statistics, expert picks and viewpoints. Expert picks and viewpoints are where you will find the pro and cons.