Key facts
- President Donald Trump ordered the U.S. Navy to revert to steam catapults.
- The U.S. Navy's newest carriers currently use the electromagnetic aircraft launch system (EMALS).
- The reversion to steam catapults could cost billions of dollars.
- The reversion to steam catapults may require more sailors.
- President Donald Trump issued an executive order on childhood vaccines.
- The executive order aims to separate childhood vaccines into individual shots.
- Public health experts cite logistical and financial challenges for the vaccine plan.
- Drugmakers would need to revive decades-old vaccines for the plan.
- Drugmakers may need to build new manufacturing plants for the vaccine plan.
- Parents could face more frequent and costly doctor visits due to the vaccine plan.
President Donald Trump has directed the U.S. Navy to revert its newest aircraft carriers from the advanced electromagnetic aircraft launch system (EMALS) to older steam catapults. This directive could result in billions of dollars in costs and require the Navy to employ more sailors. The decision marks a significant shift in the technology employed for launching aircraft from U.S. carriers.