Janet Napolitano, the US homeland security secretary, will arrive on Saturday evening for a visit, The Jerusalem Post has learned. Napolitano will meet with officials from the Public Security Ministry and visit elite Israel Police units. On Sunday, she appeared on ABC television's This Week program to discuss the attempted terrorist attack on a US airliner over Detroit. Napolitano said investigators did not have enough information to keep the suspect, 23-year-old Nigerian Umar Farouk Abdul Mutallab, from boarding his flight to the US from Amsterdam, and that the system worked as it should have. The father of the man accused of attempting to blow up the jetliner had told US officials in Nigeria he was concerned about his son's extreme religious views. However, Napolitano argued there was no specific information to place Mutallab on a no-fly list. Napolitano says that within 60 to 90 minutes of the incident, all 120 flights that were in the air at time were contacted to make sure the attempted bombing did not extend beyond the flight to Detroit. Meanwhile, a leaked US Transportation Security Administration manual, which details passenger-screening regulations and other sensitive airport security information, continues to remain available for download on the Internet. The TSA operates under the Homeland Security Department. The document, Standard Operating Procedures, first appeared on a US government Web site by accident, and was then spread in recent weeks around the Internet by bloggers and Web sites. In a statement released earlier this month, the TSA said it had "learned that an outdated version of our Standard Operating Procedures document had been improperly posted to the Federal Business Opportunities Web site. TSA took swift action to remove the document when this was discovered." It continued, "The version of the document that was posted was neither implemented nor issued to the workforce. In fact, there have been six newer versions of the document since this version was drafted. "Standard Operating Procedures change regularly as intelligence provides information on new threats and we find better ways improve security. A full review is now under way to ensure proper procedures are followed in the future." AP contributed to this report.