Tonga's development plans emphasise a growing private sector, upgrading agricultural productivity, revitalising the squash and vanilla bean industries, developing tourism, and improving communications and transport. Substantial progress has been made, but much work remains to be done. A small but growing construction sector is developing in response to the inflow of aid money and remittances from Tongans abroad. In recognition of such a crucial contribution the present government has created a new department within the Prime Minister's Office with the sole purpose of catering for the needs of Tongans living abroad. Furthermore, in 2007 the Tongan Parliament amended citizenship laws to allow Tongans to hold dual citizenship.