WASHINGTON (AP) — The Trump administration is pouring billions of dollars a year into the quest for hypersonic weapons. The Pentagon says its goal in pursuing what President Donald Trump calls “super-duper” missiles is “to dominate future battlefields.” Hypersonic weapons are at the heart of the Trump administration’s worries about China and Russia, which are arguably ahead in this chase. The missiles and aerial vehicles fly at speeds of a mile a second or faster and maneuver in ways that make them extra difficult to detect and destroy in flight. Critics question the need for them. But the Defense Department has more than doubled its spending on research, development and testing of them since 2018.