Good question. The answer is no for three primary reasons. First, the JWST isn't designed for observing Earth, so its equipment isn't optimized for that purpose

Good question. The answer is no for three primary reasons. First, the JWST isn't designed for observing Earth, so its equipment isn't optimized for that purpose. Second, spy sats are already at the limits of what physics will allow them to see. And third, the JWST is much farther from our planet than spy sats. The atmosphere blurs signals.