Sen. Hillary Clinton kept John Kerry's campaign on the offensive in Pennsylvania yesterday, accusing President Bush of lacking the "effectiveness" and "strategic focus" to pursue terrorists or win the war in Iraq. Clinton told an overflow crowd of about 800 at Montgomery County Community College in Blue Bell that the country "did not have enough troops" and was "not prepared" for the war. "You cannot solve problems if you refuse to admit they exist," she said, drawing applause and hoots from the crowd. People filled the college's Science Center and spilled into two adjacent conference rooms, where the speech was...