brutal but obviously a survivor type of leader. but it helps to understand the man to see where we're at today. we've got a piece about that. >> reporter: to understand hosni mubarak, you have to start here with his predecessor, anwar sadat, who in 1979 signed the camp david peace treaty with isra israel. that hand shake on the white house lawn enraged muslim radicals who believe sadat had sold out arab interests across the region. in protest, many even centrist arab governments broke diplomatic relations with egypt. 2 1/2 years later while president sadat was reviewing a military parade with then-vice president hosni mubarak sitting next to him, muslim radicals in the army had their revenge. sa dat was assassinated, mubarak was wounded but was sworn in as president, october 1981. hosni mubarak has been the egyptian president ever since. when he came to power, egypt was