My concerns regarding GMO's are the following:
-The direct link between GMO and "Roundup", can one exist without the other?
-Can a farmer generate his own seed with last year's crop, or is s/he dependant on the mnfctr for providing him/her with next year's crop seed?
Yes, Roundup has been used for decades on regular crops, and as others have commented, has also been used by home gardeners. It is considered the safest of all herbicides available on the market, barring perhaps citrus-based ones but even those are so concentrated they require protective gear during application. Over a dozen people have tried to commit suicide by drinking Roundup or other glyphosate-based herbicides (god knows why, because the surfactants make it sweet, I suppose) and all but one failed. Dogs have eaten glyphosate crystals (Labs will eat anything) and survived.
Yes, small and mid-size farmers can and sometimes do grow crop for seed, but the process of hulling and sifting the crop is laborious and requires special equipment, so it is more cost-effective to buy seed from agribusinesses who specialize in crop propagation. Specialists also have the laboratories to test seed and assure quality, and they have proper storage protocols to assure the seed does not get moldy or infected during storage.
You may be interested to know that GMO seed is more expensive, and growing a GMO crop is entirely optional on the part of the farmer. Seed, water, fuel, chemicals and labor are the top 5 production inputs for most grain crop farmers. So if the cost of seed goes up dramatically, the farmer has to figure out how to reduce one of the other inputs and/or increase productivity.
My background is from the Canadian praries, so I am familiar with GMO's, round up, and lawsuits.
Some more questions then,
Are there then, some GMO crops that are formulated that can not, will not, bear seed?
Are there some GMO crops that are formulated so they MUST be used with round-up, or the plant will not reach maturation?