GAZA CITY (CNN) -- As Israeli Apache helicopters appear again in the skies over Gaza, a child points and others watch and wait. Although the gunships don't fire missiles this time, the nervousness on the always crowded streets of Gaza City is palpable.
Three Israeli missile attacks on Hamas targets within a week have left seven Hamas men dead, but one elderly man also was killed and more than 40 other civilians wounded, many of them children.
"Yesterday, they aim the missile at one man, but all the victims are civilians," says Ahmed, as he sits outside his Gaza store.
Another man, Ashraf, also voices concern for the innocent.
"It's a risky just walking down the street in Gaza, people are really terrified because the Israeli missiles don't differentiate between regular people and the wanted militants," Ashraf says.
People in Gaza City have seen much bloodshed in recent years, but they are especially on edge these days because of what appears to be an all-out Israeli assault on members of Izzedine al Qassam, the military wing of Hamas -- men Israel says have carried out terrorist raids on Israeli civilians or are about to execute such attacks.
Israel launched the latest strikes after a suicide bus bombing last week in Jerusalem killed 21 people and injured more than 130 others. Izzedine al Qassam and Islamic Jihad claimed responsibility for the bombing.
Israel says its actions are self-defense and say the Palestinian Authority is not doing enough to dismantle the terrorists' network.
Palestinians call the missile strikes "assassinations." The bus bombing itself came five days after Israeli forces killed an Islamic Jihad commander, Muhammad Sadr, who Israel said had participated in past attacks on Israelis and was planning new ones.
Israeli security sources say they strive for accuracy in what they call 'targeted killings." They say many such strikes have been called off when it was deemed too unsafe for nearby civilians.
Gaza is one of the most densely populated areas on Earth, and Palestinians say even the most accurate missile hitting a car on these streets is highly likely to deliver its shrapnel to more than the intended target.
Six children were among the wounded from Tuesday's missile attack.
"This poor girl, what did she do?" asks Fatma, a nurse.
The girl in question, 9-year-old Sana Al Daour, is in a coma and on a respirator. Doctors say the attack has left her a quadriplegic.
Another victim, a 16-year-old boy, is a brain dead, according to doctors.
In Gaza's Shifa Hospital, those wounded by the attacks on Gaza's teeming streets aren't impressed by the accuracy of Israeli missiles.
"It's not just the person they target, it's the people around that target," says Fatma. "Of course I'm scared."
Despite the casualty rate among bystanders, there's no visible public pressure on Hamas to stop the attacks on Israel. To the contrary, there is strong support in Gaza for Hamas.
Meanwhile, most people here say they have to go about their business, even if they take precautions with loved ones.
"I told my family, especially my sisters to stay at home till the end of this week," Ashraf says.
Israel uses an array of intelligence sources to pinpoint its targets. Unmanned drones circle the skies over the city. Cell phone signals are intercepted. Some locals -- collaborators to the Palestinians -- turn in the militants.
Sana Al Daour, 9, is in a coma and on a respirator after Tuesday's missile attack.
Hamas itself acknowledges the Israeli intelligence apparatus, and the group is changing its tactics. On the Web site of Hamas' military wing is a six-point guide to militants.
Use cell phones sparingly, it reads, and if you must use them, don't give out details. Drive only when necessary, and when you do, drive alone.
Other tips instruct followers to use disguises, avoid main roads and travel by crowded back streets to avoid surveillance from the air.
The Web site also instructs its members to develop a sense of who may be watching them, warning that it may be a drone in the sky, a shopkeeper, or even their neighbor.
In the wake of the Israeli strikes, Hamas and Islamic Jihad operatives have gone to ground. People that CNN never had any trouble contacting are now unreachable.
The militants' job description includes the deadly game of hide and seek with Israeli military forces.
But for people on the streets who don't deal in death, the prospect of facing death has become an everyday reality.