With All This Flying Space Stuff, is it Time To Start Worrying?

Okay, now I'm starting to think about things a little more. These space events seem like they are becoming more and more common.

A meteorite exploded over Russia yesterday causing 500 peple to be injured. Fireballs crashed to earth, buildings shook from the shockwave, and s big burst of light filled the sky as the giant rock screamed by at 33,000 miles per hour.Residence were in panic mode and window frames buckled and glass shattered everywhere.

This of course coming a day before another asteroid flys by earth at a relatively close 17,000 miles from us. Do these facts have you concerned that an even bigger one is on the way? NASA officials say there is nothing to worry about but these events seem to be occurring more and more, and closer and closer to mother earth.