Obviously, Mr. Pipes has not learned about (or has chosen to ignore) the Koranic, Allah-inspired term of "abrogation". This term was given to the command of "Allah" that when conflicting ideas appeared in the Koran (e.g."no compulsion in religion" versus "kill the unbelievers if they refuse to submit") Muslims are told the latest, or most recent rule is to apply.
Mohammed talked peace while he was weak and outnumbered, but once he got strong, with a horde of bloodthirsty savages following his every directive, "Allah" mysteriously gave directives to conquer by the sword.
Unfortunately, Mr Pipes and the millions of Muslims who don't really understand what the Koran says naively believe that Islam is a religion of peace. If the devout Muslims, who understand the Koran correctly, manage to achieve their goal of total world domination, naive infidels AND Muslims will be forced to comply or be killed.
To the Islamic world, total peace can only be obtained when EVERYONE is converted to Islam (by the sword or intimidation), the caliphate is restored and the Al Mahdi (the 12th prophet) rules the earth under a worldwide caliphate. Of course, to achieve total peace, all of the Shi'ites must kill all of the Sunnis, or vice versa. So you see, the religion of peace calls for Muslims to slaughter anyone who does not worship Allah EXACTLY the way they do, even butchering each other.
Mr. Pipes needs to learn the truth about Islam and stop spreading false pacifications.
And non-Muslims need to understand that it is commanded by the Koran to lie to nonbelievers in order to overcome them. It's called "taqiyya" or "kitman" and it's working very effectively on the Daniel Pipes of the world.