[Greek Prime Minister Alexis Tsipras speaks at the 81th Thessaloniki International Trade Fair in the northern port city of Thessaloniki on Saturday, Sept. 10, 2016. Tsipras promised Saturday to deliver economic growth to a country hammered by years of economic hardship, as thousands gathered in protest at more planned austerity measures. (AP Photo/Giannis Papanikos)]ATHENS, Greece (AP) — Inspectors from Greece's bailout creditors have returned to Athens as the Greek government faces calls to speed up the implementation of economic reforms so it can get more rescue loans.