It is certainly PORTRAYED as committing atrocities. But "atrocities" implies intent, and it is not and has not BEEN Israel's intent to kill noncombatants, it is just that Hamas (in violation of the Geneva conventions) deliberately uses noncombatants and protected institutions and activities to hide behind and conceal their presence..
From
http://legalinsurrection.com/2014/07/israel-warns-civilians-to-stay-out-of-harms-way-hamas-sends-them-back-in/
" Hamas is engaged in a war crime: bringing innocents into the line of fire. This is a major story that important newspapers are reporting but their analysts are missing this and, instead, faulting Israel!
Hamas using human shields and brags about it as MEMRI shows here."