Original sentence: A third important group of sectors, including health, education and water services are considered in many countries as governmental responsibilities to be tightly regulated and not left to the vagaries of markets.At the same time, powerful countervailing arguments and civil-society movements are pressing for fuller accountability and legislative restriction of potentially unethical market and corporate behaviours.Before the WTO's Uruguay Round negotiations began in 1986, services were not included in international trade agreements.Development of information technologies and the internet have helped introduction of a range of internationally tradeable service products including e-banking, 'telemedicine', distance learning and such blights as international gambling, 'spam' and pornography.Governments are increasingly being influenced to expose former monopoly services to international competition.Most services have traditionally been classed as domestic activities difficult to trade across borders.Nevertheless, some service sectors—in particular, international finance and maritime transport—have been largely open for centuries, as necessary components of merchandise trade.Other large sectors have undergone fundamental technical and regulatory changes in recent decades, opening them to private commercial participation and reducing barriers to entry.Some service categories have been viewed as domains for government ownership and control, given their infrastructural importance and susceptibility to national monopolies
Edited sentence: A growing number of governments have gradually exposed previous monopoly domains to competition; telecommunication is a case in point.A third important group of sectors, including health, education and water services are considered in many countries as governmental responsibilities, which should be tightly regulated and not be left to the exclusive rule of markets.Before the WTO's Uruguay Round of negotiations which began in 1986, services were not included in international trade agreements.Large segments of the services economy have traditionally been considered as domestic activities that are difficult to trade over borders, and some services sectors have been viewed as domains of government ownership and control, given their infrastructural importance and the perceived existence, in some cases, of natural monopolies.Nevertheless, some services sectors, in particular international finance and maritime transport, have been largely open for centuries--as the natural complements to merchandise trade.Other large sectors have undergone fundamental technical and regulatory changes in recent decades, opening them to private commercial participation and reducing existing barriers to entry.The proliferation of the World Wide Web has helped to create a range of internationally tradeable product variants--from e-banking to tele-health and distance learning