Charities were a source of money and also provided significant cover, which enabled operatives to travel undetected under the guise of working for a humanitarian organization.

By contrast, events with the positrons travelling undetected down the beam pipe, are accepted.

These tags and the cell-phone tracking systems will make it almost impossible for someone to travel undetected, which has raised privacy concerns about this new technology.

An Elf could travel undetected through almost any opposition.

For a long time, his father, Tom Kenny, traveled undetected through the mortal world.

That ship traveled right through your watch area undetected.

The plane traveled undetected toward Washington for 36 minutes, the report found.

Because of their preference for hidden away living spaces they oftentimes travel undetected globally.

Ellen had to "perform" successfully in all three arenas simultaneously for the couple to travel undetected.

This was just something Tayledras did, and it was largely how they were able to travel undetected through the forest.