Quickly he said, "I'm sure we can work out an alternative testing method."

In 1933 Davidson had the opportunity to test his testing methods.

This week several of them called for the government to spend more on research to find new and better testing methods.

Under this approach, the system may require that more than one testing method be considered.

The company invested more than $275 million in the development of alternative testing methods.

"We must look for more valuable testing methods," she said.

Further, they say, there is no obvious substitute for the testing methods now in use.

"I won't allow anyone else to be subjected to their testing methods."

What is going to provide the incentive for commercial companies to develop alternative testing methods?

And that, of course, includes the need for consistent testing methods.