. >> master bomb maker, ibrahim al asiri, a 29-year-old saudi, is both imaginative and ruthless. ing a red kafir is his brother, abdullah. the brothers are saying their last good-byes, because abdullah is departing on a suicide mission. in his body is a bomb made by his brother. this is the aftermath of that mission. abdullah dead, his target, a powerful saudi prince, mohammad bineff, who has close ties to the white house, injured. >>> this is cnn breaking news. >> a jet with nearly 300 people on it. passengers told us they saw a flash, flames, and then smoke. >> according to u.s. authorities, al asery is behind every recent plot to blow up airliners. he masterminded the so-called underwear bomber that failed to can detonate on christmas day 2009. he chose the explosive petn. it has become his signature. >> it looks just like sugar, just like salt, and it's easy to imagine how this could be stitched into clothing and hidden around the body, and that's what makes petn such a challenge for airport security officials to detect. >> al asiri managed to get the printers on two planes, b