The US Navy's top admiral says lasers are key to keeping cheap drones from eating into warship missile magazines

As the US Navy assesses what weapons it could need in a layered defense against a range of threats, laser weapons could be a promising choice. US Marine Corps photo by Staff Sgt. Donald Holbert The US Navy's top admiral wrote an op-ed saying laser weapons are necessary to counter cheap drones. Lasers and other directed-energy weapons are preferable against low-cost targets. The Navy recognizes that using high-end munitions against cheaper threats is unsustainable. The US Navy's top admiral…