 The launch of such an Orion nuclear bomb rocket from the ground or low Earth orbit would generate an electromagnetic pulse that could cause significant damage to computers and satellites as well as flooding the van Allen belts with high-energy radiation.Since the EMP footprint would be a few hundred miles wide, this problem might be solved by launching from very remote areas.A few relatively small space-based electrodynamic tethers could be deployed to quickly eject the energetic particles from the capture angles of the Van Allen belts.