looking for a story which features the universal clean up or garbage collection process

Pretty please. From what I remember. Starts off with a us national guard captain calling her team to hop in a shuttle for a quick flight to the moon to stop a team of Chinese and European scientists from poking around anoon abandoned moon base the Americaname left there in a sudden until explained hurry. We found out that the US had been sabotaging moon shot attempts and had blocked it's self off from the rest of the world. The scientists find and enter a portal and the Americana chase them. It turns out that when a civilization gets to a certain advanced technology level that something comes along and wrecks every the garbage collection process even. Hence the American desire to leave the portal alone. A chase ensures and mystery is learned.