By Lawrence Morahan
Amid mounting pressure on the Bush administration to explain questionable intelligence it used to justify war with Iraq, a U.N. arms inspector claims he is confident that within six months, he'll have "a substantial body of evidence" proving that Saddam Hussein did have a weapons of mass destruction program.

"I've already seen enough to convince me," U.N. arms inspector David Kay told NBC News anchorman Tom Brokaw on Tuesday's Nightly News broadcast.