dude u totally can. like i said a friend of mine (prof at UC riverside) won a Mccarthy fellows award for her work on spider silk.
She created a tomato plant that produced spider silk proteins (legally), so if u had the right lab u could totally make this legally, as a substitute for medicinal
marijuana. U just have to control pollination (if u made it into a clone only or female plant then u would have no problems). The reason monsanto corn is spreading is that corn plants have both female and male parts so all their plants have the changed sperms.