(AGI) Buenos Aires, Feb 19 - Hundreds of thousands of people,as high as 500,000 according to some local police estimates,have taken to the streets in Buenos Aires in a colossal protestagainst President Cristina Kirchner. Federal police gave a farlower estimate of 50,000. The demonstration, held with symbolicsilence, is taking place a month after the death of AlbertoNisman, a public prosecutor who accused Kirchner of covering upa 1994 terrorist attack against a Jewish centre. Among thosewho braved the heavy rain that battered the capital during theprotest were Nisman's two daughters, aged 15 and 7, and hisex-wife, judge Sandra Arroyo Delgado. They were recognised andapplauded by the crowd. The government called the protest a"soft coup" generated by those who seek to destabilise thegovernment. In a televised speech aired hours before the march,Kirchner said Nisman's allegations were an attempt to involveArgentina in the Middle East. "I ask you to open wide youreyes. I am not talking about conspiracies. It is a world ofinterests that want to subordinate others," she said. (AGI) . .