Besides events such as the Planet Hollywood Cape Town bombing Aug 1998, what other warning signs were there that Osama Bin Laden was planning attacks against the USA?

by pagad
Georgy_K_Zhukov

This is mostly asking about current events and recent history. We have a 20 year rule in place here, so unfortunately, this question isn't really answerable. If you wanted to resubmit it specifically asking about bin Laden's role in Afghanistan in the 1980s, please feel free though.