Jordan Corbett Showed me this Book 9.

Steel Trapp: The Challenge - Ridley Pearson, Cliff Neilson, Cliff Nielson

I just finished this book, but it got very intense at the end.  Steel was reunited with his father after he had been chased by him,but didn't know who it was.  Steel kicked him down the stairs and then recognized him.  They determined that the terrorists were using technology to rig the lottery. They scanned everybody in the lottery room to see who had a pda which could channel different frequencies. They aprehended the bad guy and saved the lottery. This book has a great balance of suspense and action. I really liked it.