Parts of Western Canada were under a deep freeze Saturday, as temperatures in cities like Calgary, Edmonton and Winnipeg dipped below -25 C. The cold seemed to reach its peak in Saskatchewan, where several wind chill warnings were in effect. In Regina, the mercury dropped to a bitter -42 C.
Desperate to defuse Thailand's deepening political crisis, Prime Minister Yingluck Shinawatra dissolved the lower house of Parliament on Monday and called for early elections. But the moves did nothing to stem a growing tide of more than 150,000 protesters vowing to overthrow the government.
In one of the biggest advances against leukemia and other blood cancers in many years, doctors are reporting unprecedented success by using gene therapy to transform patients' blood cells into soldiers that seek and destroy cancer.