""There are too many people to count," said one security source, who declined to be named on such a politically sensitive issue. "It was the biggest rally we've ever seen in Lebanon." As a Reuters correspondent, I have covered countless demonstrations in numerous countries, from small-scale sit-ins to anti-globalisation riots, from rallies against war to union shutdowns. But Sunday's event was perhaps the most vibrant, colourful and animated mass mobilisation I have yet seen."