The main tool is the salary cap.
The main tool is social media.
Its main tool is to expose the leading figures perpetrating environmental crimes.
With short-term rates close to zero, the Fed's main tool is expectations management.
His main tool is the hidden camera, which is why he would make an excellent secretary of homeland security.
The team's main tool is a Jeol 890 scanning electron microscope, an instrument that is able to magnify objects nearly one million times.
His main tool is to try to physically and mentally batter his players and then hopefully get some results out of that.
At the AAAS meeting in San Diego, he showed off some of the tricks of his trade.His main tool is a device called a secondary-ion mass spectrometer.
"The main tool is that closed area, that red line," said John Stein, the head of the NOAA Deepwater Horizon oil spill seafood-safety program, who spoke with reporters in Pascagoula, Miss., last week.
Their main tool is water.
The main tool is monotone iterative techniques.
