Rebels Blocked on the road to Sirte

The video covers the tense situation in Sirte, where residents vow to defend their city against Gaddafi's forces. Libyan rebels face significant challenges at the frontline, hindered by limited weaponry and Gaddafi's rockets. Their advance is blocked by heavy fighting, and they rely on coalition airstrikes. Fear and panic spread among the rebels due to potential infiltrators. The rebels urgently need a quick victory as Gaddafi manipulates fear, knowing they cannot endure a prolonged campaign.

What fears did the rebels have regarding young men seen near the front line?

Why do the rebels believe they cannot survive a long campaign against Gaddafi?