Mr Hutton is a cannier, less flamboyant operator than Mr Milburn.

ECONOMIST: Bagehot

But Mr Ergen is a less seasoned Washington operator than Mr Murdoch.

ECONOMIST: Satellite television

He charges slightly less than the usual hedge fund operator: 1.5% annually plus 17.5% of any profits, in exchange for a two-year commitment.

FORBES: Magazine Article

"There was less than 30 minutes between the time we got the 911 operator's call to when the sheriff said there was a crash, " Goldberg said.

NPR: Authorities: 4 Dead In Fiery Highway Crash In Ga.

Costco Wholesale fell 39 cents, or 0.4%, to 88.65, after the wholesale club operator said March same-store sales rose less than expected.

WSJ: Dow Lays an Egg on Week

Wavemetrix, for example, carried out a study for a European mobile operator that was aware that its network was less reliable than those of its rivals.

ECONOMIST: Monitor

Despite these incidents the operator, Robotic Parking Systems, insists that cars are less likely to suffer accidental damage than in a traditional car park.

CNN: Valet parking, robot style