..Tear Gas.
Egyptian military tanks surrounded Cairo's Tahrir Square, where hundreds of protesters had gathered on Saturday.
Demonstrators chanted "Down with Mubarak" and "We are all Egyptians."
The atmosphere was tense, but people gathered in the square were posing for pictures with tanks and shaking troops hands.
Tahrir Square, located near many government buildings in the heart of downtown Cairo, has been a focal point for protesters.
Nearby, police fired tear gas on protesters who were pushing toward the country's Interior Ministry.
