The Iranian threat, of course, is real, but its immediacy gets turned on and off by the Prime Minister like a faucet. In this tube the coals were placed, and when the water in the urn was hot, it could be drawn off by means of a faucet at the side. The drip-drip of water from the faucet sounded loud in the quiet.
After multiple dives per day or multiple days of diving, a minimum surface interval of 18 hours is recommended. If you had to do a decompression stop during a dive, the recommended time to wait before flying is a bit more of a gray area.
Flying is allowed after two weeks in a stable person if they had a heart attack that had major complication such as heart failure. If a person has undergone an angioplasty where a stent (wire mesh) is placed in heart arteries, then a waiting period of one week is recommended before flight travel. The period immediately following the stent procedure carries a high risk of clot formation; air travel during this period would increase the risk further.