It was such a simple hole in his system and one that I could have exploited without him having a clue what was going on.

CNN: Opinion: Difficult to become a hacker? It's easier than you think

Also under construction at Rockwood: a simple, six-hole short course.

WSJ: Saying Goodbye to the Local Muni

"In simple terms, it won't fit through the pump hole, " says Iannini.

FORBES: Antibiotic Breakthroughs Fall Short

Meteorite hunters require no particular expertise as the hunt is relatively simple - fragments leave a small crater similar to a mouse's hole.

BBC: Chelyabinsk gripped by 'meteor fever'