“Some people purchasing new insurance policies for themselves this fall could see premiums rise because of requirements in the health-care law, Health and Human Services Secretary Kathleen Sebelius told reporters Tuesday. Ms. Sebelius’s remarks come weeks before insurers are expected to begin releasing rates for plans that start on Jan. 1, 2014, when key provisions of the health law kick in. Premiums have been a sensitive subject for the Obama administration, which is counting on elements in the health law designed to increase competition among insurers to keep rates in check.”