http://adf.ly/1SZdI2, http://adf.ly/1XIsTW, http://www.ctvviet.com, http://nhac24.blogspot.com/ <br />An apparent terrorist attack is being investigated in the capital of the U.K. A historic American company says it's not sure it can stay in business. Researchers in Vietnam try to address the bees' needs to promote pollination. And a CNN Hero helps elderly Native Americans in the U.S. West.