The US Department of Health and Human Services (HHS) is investigating what happened to $30 million it sent to a Muslim nonprofit to help resettle Afghan refugees in the US, The Post has learned. The department is the latest to look into the Council on American-Islamic Relations (CAIR) amid accusations it has ties to dangerous groups in foreign nations including terror group Hamas. In letters to the governors of California and Washington, where the $30 million was sent, HHS — headed by Robert F. Kennedy Jr. — claims it has received information that “raises concerns about the business practices and...