HOUSTON (AP) — The Biden administration is not requiring FBI fingerprint background checks of caregivers at its rapidly expanding network of emergency sites to hold thousands of immigrant teenagers, alarming child welfare experts who say the waiver compromises safety. In the rush to get children out of overcrowded and often unsuitable Border Patrol sites, President Joe Biden’s team is turning to a measure used by previous administrations: tent camps, convention centers and other huge facilities operated by private contractors and funded by U.S. Health and Human Services. In March alone, the Biden administration announced it will open eight new emergency sites across the Southwest adding 15,000 new beds, more than doubling the size of its existing system. These emergency sites don’t have to be licensed by state authorities or provide the same services as permanent HHS facilities. They also cost far more, an estimated $775 per child per day. And to staff the sites quickly, the Biden administration has waived vetting procedures intended to protect minors from potential harm.