A monster virus comes back from ancient times to wreak havoc on mankind. That may sound like a blurb from a science fiction novel, but as scientists have known for some time, it's not at all impossible.
Scientists have discovered a new class of antibiotics to fight bacteria such as the cause of common staph infections and other drug-resistant bacteria that threaten public health. The compounds were discovered via computer models.
Communications, navigation, battlefield logistics, precision munitions—all of these depend on complete and unfettered access to the spectrum, territory that must be vigilantly defended from enemy combatants.