Papua New Guinea is set to sign a security deal with the United States in Port Moresby today, as it faces what it describes as "challenging" security issues in the Pacific. The deal would give American armed forces access to PNG's territorial waters. Chris Hipkins is in Port Morseby for the US-Pacific summit, and met with Papua New Guinea's Prime Minister James Marape this morning. RNZ Pacific's Lydia Lewis is in Port Moresby, at Gordon's Market.