Nabbed : caught or seized someone, especially for doing something wrong.The sentence says the militant was caught at the airport.Caught : the closest synonym of nabbed; it directly means seized or captured.Pursued : chased or followed someone; this does not match nabbed.Arrested : a related meaning, but it is more specific to legal custody and is not the best general synonym here.Beaten : defeated or struck; unrelated to nabbed.Therefore, the correct answer is caught.