Possible Clues:

• As it's there as insurance
• As it's there, as a precaution
• In order to allow for eventualities
• Where to find as boxed? That's precautionary
• Where traveller may keep clothes for emergency
• Lest as is there
• Packed as a precaution
• As a backup plan
• Peruvians head east as a precaution
• It's as here as a precaution