Risk assessment and risk management of LMOs with stacked genes or traits (part I)

When there is a stacked gene LMO, risk management involving the detection of all the genes is one concern whether more than one gene should be detected. I opine that the  all the genes involved should be detected. However, when there are numerous genes being stacked in a LMO, the may pose a practical consideration to detect a vast number of genes.  Also, another concern is on the interaction between/among the genes involved. There is remote possibility when the gene acting along is harmless, but post significant danger when acting in unison.