Palestinian officials have denied Israeli claims that they recently released two Palestinians who had been jailed for the murder of two Israeli hikers.
It's part of a bigger row over what Israel calls the "revolving door" prison policy of the Palestinian Authority.
Israel says this policy means militants get locked up for a while so the Palestinians can say they're getting tough on security, and then released.
Also, Israel wants some imprisoned Palestinians extradited as part of any troop pullout.
Here in the West Bank town of Jericho, a jailer unlocks the heavy security doors leading into one of the prisons controlled by the Palestinian Authority.
In this cell -- Shaher and Yousef Rai, two Palestinians on Israel's "most wanted" list, sit on a steel-framed bed, chain-smoking.
In the corner of the four-man cell, Shaher has hung pictures of his two daughters and of his heroes - a Hamas bomb maker and Cuban revolutionary Ernesto "Che" Guevara.
They're at the centre of a row with Israel -- in more ways than one.
The two cousins were jailed -- by the Palestinians -- for the murder of two Israeli hikers in a desert ravine near Jericho in July 1995.
Israel has accused the two of being the killers.
Israel has a list of more than 30 jailed Palestinians they suspect have killed or attacked Israelis and who they want handed over.
It's been made a condition of any Israeli troop pullback from the West Bank.
But the Palestinians have said they would prosecute suspects, but never extradite them to Israel.
Shaher claims he's innocent and is just being held to keep the Israelis happy.
"I am innocent, Israel just wants to make political achievements from the Palestinian authority, I am here because Netanyahu said he wants us to be here in jail and that is why the Palestinians are keeping us here."
SUPER CAPTION: Shaher Rai, prisoner
And Israel has accused the Palestinian Authority of letting these, and other prisoners, out of jail.
The so-called "revolving door" policy means the Palestinians round-up militants to prove they're cracking down on violence - and then release them, says Israel.
"They were first released and gone free, now that we have mentioned it by name the Palestinian authority has returned them to jail, this is one example of the revolving door policy about terrorists, murderers who should be tried and incarcerated for life."
SUPER CAPTION: David Bar-Illan, Netanyahu advisor
Palestinian officials say anyway, Israel has no right to even demand such extraditions.
"It's clear that this request, in particular the handover of Palestinian prisoners is not only illegal, it violates the agreement. So long as they are within the jurisdiction of the Palestinian judiciary and so long as they are being tried within the Palestinian legal system Israel has no right to demand their handover."
SUPER CAPTION: Hanan Ashrawi, Palestinian minister of Higher Education
Prison officials said that Rai hasn't left the Palestinian jail since his arrest more than two years ago.
True or not, the whole issue is being used by Israel to show that the Palestinians can't be trusted on security matters and therefore shouldn't be entitled to more West Bank land.