ATHENS, Greece (AP) — Unions in Greece have called a three-day general strike to protest against new bailout austerity measures, in a sign of growing discontent with Prime Minister Alexis Tsipras' left-wing government. Lawmakers are currently debating an overhaul of the pension system, proposed by the government under Greece's obligations to rescue lenders from other eurozone countries. Workers will pay higher contributions under the planned pension reforms, which have triggered months of protests, including highway blockades by farmers and walkouts by lawyers and other professional groups. Annual state financing on pensions is equivalent to 14.5 percent of gross domestic product, according to the Paris-based Organization for Economic Cooperation and Development.