WICHITA, Kan. (AP) — Federal prosecutors say a man accused of plotting a suicide bomb attack at a Wichita, Kansas, airport was "well on his way" to becoming a violent terrorist before authorities began investigating him. A heavily redacted government filing Monday seeks to counter defense arguments that an undercover FBI agent radicalized Terry Loewen. The defense contends the government conduct in the operation was entrapment and that terrorism-related charges against Loewen should be dismissed. But prosecutors argued it would have been outrageous for the FBI to leave Terry Loewen to his own devices, trolling the internet for someone to help him. Loewen was arrested in December 2013 when the former avionics technician tried to bring a van filled with inert explosives onto the tarmac at Mid-Continent Airport. Loewen has pleaded not guilty.