The answer to this question comes at the beginning of chapter 13. In the behind-the-scenes dialogue, the two adults are surprised and relieved to find out that these two identities, powerhouses on "the nets" are merely children. One wants to laugh.
However, when they learn that the kids' last name is also Wiggen, they take things more seriously. Officially, they determine it is best not to expose them. They do not believe the kids are under the control of any other forces (other than themselves) and do not deem them to be an immediate threat. Knowing their identities allows the authorities to simply monitor their actions and act accordingly. For the time being, they decide to leave them alone.
Such a reaction shows that the authorities believe all of the Wiggen children have a sense of intelligence that might be useful in the bigger plan to protect Earth and keep things running smoothly during and after the war with the Buggers.
Make no report at this time except that we have determined that Locke and Demosthenes have no foreign connections and have no connections with any domestic group, either... (228).