Son of former Assembly speaker pleads not guilty   Man allegedly attacks speed camera with pickax   MGA "still assessing" impact of Bratz ruling: CEO   Tokyo stocks open higher on bargain hunting, economic woes cap gains+   Calif. trio charged with torturing, abusing teen   President, first lady buying home in Dallas   Dollar trades at mid 92 yen level in early Tokyo deals+   Main events scheduled for Dec. 7-14+   Mich. medical pot law now in effect amid questions   Court to hear 1.6 bln dollar Chevron case against Ecuador   Pierce to talk to authorities Friday about Burress   Senators grill auto CEOs, eye GM-Chrysler deal   Some autoworkers can get paid without leaving home   Jobless rolls at 26-year peak, factory orders drop   Study suggests good cheer may spread itself   Clinton scrambles to reduce campaign debt   Sampras back in London and relishing life   Happiness is contagious, study finds   Canadian leader suspends Parliament to keep power   Pakistan vows to hunt Mumbai attack plotters