“There was a terrorist attack in jerusalem a couple of years ago. I think 4 men were stabbed by the terrorist. It seems the shul emnployed a cell phone jamming device and people could not call for help.”
What an inane comment.
According to you, a person should not turn off his phone when going to shul to daven and should actually constantly look and check their phone, incase there may be an emergency.
That’s is patently ridiculous.
Also, then everyone should take a cell phone with them everywhere, even on Shabbos, Yom Tov, Yom Kippur.