Late Tuesday night, Kenyan police arrested a suspected terrorist involved in Monday’s grenade attacks; on Monday unknown attackers threw hand grenades at a bus stop and a downtown bar in Nairobi killing one and injuring twenty; the arrested man was captured along with a stockpile of weapons that included thirteen hand grenades, two submachine guns and four pistols; so far no group has claimed responsibility, but the terrorist organization al Shabaab in Somalia had sworn that it would retaliate for Kenya’s cross-border military actions; Kenyan forces have crossed into southern Somalia and are carrying out airstrikes and are advancing on al Shabaab held towns