found that a cable fault was responsible for the event. 20 April – A section of Nicoll Highway collapsed, four workers were killed. May 1 May - The National Trades Union Congress's new headquarters, One Marina Boulevard is officially opened. Singapore Pools is transferred to the Singapore Totalisator Board; present-day Tote Board (a statutory board of the Ministry of Finance), taking over this role from Temasek Holdings. 4 May - The first $10 polymer notes are released. Valuair launches its first flights. 10 May - SMRT and TIBS were officially merged, whereas SMRT Buses was formed. 14 May - The Media Development Authority (MDA) awards the 99.5FM frequency to MediaCorp under MediaCorp Radio. The new station, GROOVES 99.5FM (renamed Lush 99.5FM) will broadcast local music and arts programmes, as well as jazz and programmes by tertiary students. The station will start broadcasting by end 2004. 19 May – First Lieutenant Brandon Loo of the Republic of Singapore Air Force is killed when his F-16 jet crashed while on training from the Luke Air Force Base in Arizona. 21 May - The Changi Naval Base is officially opened. 29 May - StarHub launches its new digital cable TV service. June 1 June - Security guards are now deployed in MRT stations. 4 June - Hippo City Sightseeing bus in Singapore started operations. 5 June - Wild Wild Wet, a water theme park opens to the public in Downtown East. 15 June - MINDEF announced that National Service will be cut from 2.5 to 2 years from the December 2004 batch. 18 June - The third NEWater plant opened in Seletar. It operated for seven years until its closure in 2011. 29 June - A blackout occurred for the second time, affecting about one-third of Singapore residents. Investigations reveal that the blackout was caused by a disruption of natural gas supply from Indonesia. July 20 July - The National Security Secretariat is renamed to National Security Coordination Secretariat as part of an enhanced national security plan. August 12 August - Lee Hsien Loong was sworn as the third Prime Minister. 22 August - Pro-family policies were introduced during the National Day Rally. Among the measures include an enhanced Baby Bonus scheme, increased maternity leave to 12 weeks, more childcare options, a five-day work week, among others. In addition, female civil servants can claim medical benefits for their dependant unmarried children below 18