1.   While professional gangs usually handle the trafficking, guerrillas tax drug harvests and charge landing fees at jungle airstrips.

2.   Air routes disrupted, drug pilots turn to short, low-altitude flights using a network of jungle airstrips.

3.   In February, the Peruvian army seized nearly three tons of cocaine paste at a jungle airstrip.

4.   Now drug pilots are increasingly making short, low-altitude flights using a network of jungle airstrips.

5.   The plane was found at a remote Colombian jungle airstrip a few months later.

6.   They forced it to land on a remote jungle airstrip where hundreds of guerrillas hauled the occupants deep into rebel-held territory.