The monsoon floods have disrupted many things in Pakistan, but not, it seems, religious terrorism. A suicide bomb has just killed at least 50 people at a Shia Muslim rally in Quetta in the south-west of the country. Sunni Taliban militants say they carried out the attack.
It came just two days after another suicide bombing operation directed at a Shia procession in Lahore, which killed 31 people. Again the Taliban said they were responsible, and that the attack was in retaliation for the killing of a Sunni leader last year.
In Pakistan, Sunni Muslims outnumber Shias by about four to one. A Shia leader has appealed for calm.
This is the same murderous sectarian feud that has claimed so many lives in Iraq. One of the worst outrages there came on November 23, 2006 when a series of bombs went off during a Shia religious festival in Sadr City, killing at least 215 people. Shias retaliated with a series of attacks on Sunni targets.
(See also my blogs of March 28 and Oct 28, 2009 and Jan 3 and Feb 6 , 2010.)