They should immediately report unattended packages observed in public places or any other suspicious activities.

Others watch closely for unattended packages, or passengers wearing bulky coats on hot days.

Be alert to your surroundings and the presence of unattended packages or bags or suspicious objects/activity in public areas.

Any unattended packages, even briefcases and suitcases, will be quickly destroyed by robots.

This meant, he said, spotting pickpockets and unattended packages and being culturally sensitive to the growing number of foreign tenants, especially the Japanese.

New Jersey Transit uses computer software that automatically alerts the police when an unattended package shows up on video monitors.

But since the bombings in Madrid on March 13, train operators around the country have been making announcements to their passengers to watch for unattended packages.

At the Pentagon, security guards were jittery after an unattended package was found early yesterday near an entrance to the Metro subway system.

But he said no bombs were found, and most of the reports turned out to be unattended packages or lost luggage.

Every few minutes, a voice calls over the speakers: "If you observe any suspicious behavior or unattended packages ..."