What the Hell Were the Israeli Defense Forces Thinking???

I came across this in Aviation Week's "Washington Outlook" news sumary:

During last year’s fighting in Lebanon, the Syria listening post monitored private cell phone conversations from Israeli soldiers that gave Hezbollah enough information to locate and identify ground units even though Israeli military radios remained secure.

They let their soldiers go into battle wearing cell phones???? They let their soldiers use them?

What the hell were they thinking? Even if the phone is "off" you can turn it on remotely (it's a method of bugging people).

They let their soldiers carry emitters that painted targets on their backs!!