The Peace Corps is suspending its programs in Kenya because of security concerns and is pulling more than 50 volunteers out of the country until threats to safety decrease, the Peace Corps and State Department said Thursday. Militants have carried out dozens of attacks in Kenya over the past two years. Also Thursday, a foreign woman was shot and killed in Mombasa, the police said, the second foreigner killed this month in the area. Germany’s Foreign Ministry said it was investigating reports that the woman was a German citizen.