1.   But for security reasons, most itineraries and lodgings are being kept secret as long as possible.

2.   But the details had been kept secret as private taxpayer information.

3.   Intelligence and military options for freeing hostages will be kept secret as part of a classified National Security Presidential Directive.

4.   The location of the Research Center is kept secret as a security precaution.

5.   As a result, the Philippines decided to keep the visit as secret as possible, he said.