A bus driver working for the 45 line looks on after the windshield of the bus he was driving were broken by a stone allegedly thrown by a striking bus driver during a bus drivers' strike in San Lorenzo, outskirts of Asuncion, Paraguay, Monday March 7, 2011. Bus drivers are on a countrywide strike to protest against a Paraguay's government's measure banning buses older than 10 years for public transportation. (AP Photo/Jorge Saenz)