South China drought worsens, threatening crops   DPJ exec calls for Ozawa's resignation as secretary general+   Expanding lake threatens thousands in Pakistan   Greece may seek IMF help: report   2ND LD: Japan's big-firm business sentiment down in Jan.- March quarter+   Japanese crude steel output leaps 54% in February+   Wrestling: C. Icho to miss world championships+   Lawmakers struggle to finish health overhaul bill   A Southern-style taste of health care politics   Clinton in Moscow for Mideast, nuclear arms talks   Idaho first to sign law against health care reform   A symbol of the slave trade joins US and Cuba   150th anniv. of 1st Japanese vessel's arrival in U.S. marked+   Obama back to campaign-style politics, a strength   LEAD: Tokyo stocks fall on profit taking after rally, poor economic data+   China rejects Japan's sovereignty claim over Senkaku Islands+   Ex-teacher sentenced to 30 yrs in prison for raping pupils+   Study shows Aussie dingo may be world's oldest dog   Lido's leggy 'Bluebell Girls' fete leggiest of all   gategroup Reports Solid 2009 Performance