[go-nuts] problem with conditional AND

I have "runtime error: index out of range" error in the following code:
package main

import (

     "fmt"

     "os"

)


func main() {



     if len(os.Args) >= 2 && os.Args[2] == "-l" {

         fmt.Println("-l")

     }


}

What's wrong with logical AND expression? It should've evaluate left part (
len(os.Args) >= 2) to "false" and exit...