News At Seven-Thirty highlights:CE under pressure to resume HOS;Undersecretary for Security warns of decisive action by police toward aggressive protesters;South Korean marines fire on civilian airliner;New Greek bailout like to go through after two obstacles removed;Friends of the Earth calls for food banks to distribute unsold food to the needy;Critics hit back at government’s plan to abolish by-elections;Experts believe water leakage contributed to Tuen Mun canopy collapse;World's largest emerald on display in Colombia.