Can you see the key lie in this first paragraph at Muslim Matters?
After an agreement to a six-month ceasefire between between Hamas and Israel expired on December 19th, Israel launched multiple F-16 bombers into the Gaza Strip, dropping 100 tons of bombs in the first nine hours of fighting, indiscriminately massacring over 225 Palestinians and injuring over 700 others.
It's the word indiscriminately. Why would Israel need to send in the air force if all she wanted was indiscriminate death? Israel could simply launch thousands of cruise missiles into Gaza and be done with it.
Israel is specifically targeting Hamas and its evil henchmen. The fact that some civilians die as a result is not the fault of Israel.