ysss,

you say, "We're not buying 100% physical commodity goods here, a lockdown (for whatever purpose) can be part of the deal."

So what do you think of this?

from http://www.commondreams.org/headline/2010/04/13-0

Concerns about genetically altered crops and the lack of broad testing hit a boiling point last year. In February 2009, 26 leading academic entomologists -- scientists specializing in insects -- issued a public statement to the Environmental Protection Agency complaining that they were restricted from doing independent research by technology agreements Monsanto and other companies attach to every bag of biotech seed they sell. The agreements disallow any research that is not first approved by the companies.

"No truly independent research can be legally conducted on many critical questions regarding the technology," the scientists said in their statement.