Security ramped up at Cambodian airport ahead of opposition leader's planned return Security has been ramped up in the Cambodian capital Phnom Penh amid a planned return of self-imposed exiled opposition leader Sam Rainsy. Dozens of armed police are standing guard while army trucks line the main road to the international airport. Rainsy arrived in Malaysia on Saturday as he sought to get home to rally his supporters against strongman Prime Minister Hun Sen. IMAGES AND SOUNDBITES