They need to check both the rock and the drill are behaving as expected.

BBC: Curiosity Mars rover hammers into rock

Check out the Camden Sophisticated Sisters Drill Team website at camdensophisticatedsisters.org and see how to help.

CNN: Drill team keeps kids off deadly streets

You know the drill if you want to find out more -- check out that source link below.

ENGADGET: People People AB's Transparent Speaker goes live on Kickstarter, we clearly go hands-on