The border crossing between Egypt and Gaza has opened to let a trickle of desperately needed aid into the besieged Palestinian territory for the first time since Israel sealed it off in the wake of Hamas’ bloody rampage. More than 200 trucks carrying roughly 3,000 tons of aid are positioned at the Rafah crossing though only 20 have crossed so far into Gaza on Saturday with medical supplies. Gaza’s 2.3 million Palestinians, half of whom have fled their homes, are rationing food and drinking dirty water. Hospitals say they are running low on medical supplies and fuel for emergency generators amid a territory-wide power blackout. Israel is still launching waves of airstrikes across Gaza as Palestinian militants fire rocket barrages into Israel.