Analyzing the daily records of border guards and to examine activities in areas that had been under surveillance might have presented an alternative but could not be realized because of financial issues.
Menganalisis catatan harian penjaga perbatasan dan meninjau kegiatan di kawasan tersebut berada di bawah pengawasan yang menghadirkan sebuah alternatif namun tak terwujud karena masalah keuangan.