FILE - In this Monday, Sept. 23, 2013 file photo, heavy black smoke rises from the Westgate Mall in Nairobi, Kenya after multiple large blasts rocked the mall during an assault by security forces after gunmen threw grenades and opened fire during an attack that left multiple dead and dozens wounded. Kenya's lead counterterrorism agency is working to stop another Westgate Mall-style terrorist attack that many here believe Somali militants will try again, but the anti-terror unit is struggling to do its work because of limited funds, according to a security official from the police headquarters. (AP Photo/Jerome Delay, File)