NEW YORK - Two prominent Muslim scholars once accused of having ties to terrorism can reapply to travel to the United States now that the State Department has concluded they pose no danger to the country, federal spokesmen said Wednesday. Secretary of State Hillary Clinton has signed orders enabling the re-entry of professors Tariq Ramadan of Oxford University in England and Adam Habib of the University of Johannesburg in South Africa once they obtain required admittance documents, department spokesman Darby Holladay said.