thousands of products added every day to staples.com, even bullhorns. how much? [ male announcer ] now get 50% off marketing materials. staples. make more happen. >> right now we are watching important countdowns with the missing malaysian jet liner. crews were scouring the indian ocean and word of the pinging sound that a chinese ship picked up. and they hope it will correspond with where the missing flight may be. if the coordinate is like the others, batteries, that is, they will run out of steam and that pinging and frequency will get weaker. about monday. and this is the point we are watching tonight. that is how much time we have