BAGHDAD - Gunmen wearing Iraqi army uniforms ambushed a security vehicle transporting money to the Central Bank in Baghdad and made off with $1 million in cash on Monday, police and Interior Ministry sources said.Four private security guards were kidnapped in the daylight robbery in busy Sadoun Street in central Baghdad in an attack that highlighted the lawlessness gripping the capital. The security vehicle was transporting money in sacks from a local bank to the Central Bank in nearby Rasheed Street when it was stopped by about 20 gunmen travelling in three vehicles with no license plates, police and Interior Ministry sources said.