Inside the decades-long hunt for the shadow broker behind Iran's missiles.
This investigation traces how Li Fangwei, also known as Karl Lee, allegedly supplied materials and technology that helped expand Iran's missile capabilities while evading authorities for years. Through intelligence leads, financial records, and on-the-ground reporting, the film uncovers a global network of front companies and unanswered questions that make every revelation more compelling.
Love Wanted: The World's Most Dangerous Arms Dealer? It’s just the start.
Join now to unlock the whole library — thousands of award-winning documentaries beyond Wanted: The World's Most Dangerous Arms Dealer, from the deep ocean to deep space.
Trending Now
- New shows weeklyFresh documentaries land every week.
- Exclusive originalsAward-winning films you can’t stream anywhere else.
- Watch anywherePhone, tablet, web and TV — pick up where you left off.
- No commitmentNo contract. Cancel in a click.
Pick the plan that’s right for you.
Flexible plans, no contracts.
Thousands of documentaries across nature, history, space, and science.
- Watch in 4K on all your devices
- Download and watch offline
- Stream ad-free — cancel anytime
Thousands of documentaries across nature, history, space, and science.
- Up to 4K
- Offline downloads
- Ad-free
Frequently asked questions
Thousands of the world's best documentaries and factual programming — nature, history, science, technology, and biography — including exclusive Curiosity Originals like Wanted: The World's Most Dangerous Arms Dealer. Stream it all ad-free, anytime.
Wanted: The World's Most Dangerous Arms Dealer streams with every plan. Plans start at $4.17/month.
Watch on the web, iOS and Android, Roku, Apple TV, Amazon Fire TV, Chromecast, Android TV, and most smart TVs. Start on one device and pick up right where you left off on another.
Curiosity Stream is our streaming service — thousands of documentaries and originals. The Smart Bundle is Curiosity Stream plus four other independent streaming services (Tastemade, Kidstream, Curiosity University, and SOMM TV) on a single subscription.