Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Series # | Season # | Title | Directed by | Written by | Original air date | U.S. viewers (millions) |
| --- | --- | --- | --- | --- | --- | --- |
| 71.0 | 1.0 | "Showdown"(Part 2) | John F. Showalter | David Amann | September29,2005 | 20.98 |
| 72.0 | 2.0 | "Safe" | Jeannot Szwarc | David Grae | October6,2005 | 21.25 |
| 73.0 | 3.0 | "From the Ashes" | Timothy Busfield | Gwendolyn Parker | October13,2005 | 20.55 |
| 74.0 | 4.0 | "Lost Time" | Martha Mitchell | David H. Goodman | October20,2005 | 19.82 |
| 75.0 | 5.0 | "Honor Bound" | Ken Collins | Amantha Segel Marks | October27,2005 | 21.75 |
| 76.0 | 6.0 | "Viuda Negra" | Paul McCrane | Scott A. Williams | November3,2005 | 20.44 |
| 77.0 | 7.0 | "The Innocents" | Martha Mitchell | Jan Nash | November10,2005 | 20.78 |
| 78.0 | 8.0 | "A Day in the Life" | Jeannot Szwarc | Hank Steinberg | November17,2005 | 21.66 |
| 79.0 | 9.0 | "Freefall" | John F. Showalter | David Mongan | November24,2005 | 19.50 |
| 80.0 | 10.0 | "When Darkness Falls" | Jeff T. Thomas | Hank Steinberg, Diego Gutierrez | December8,2005 | 21.76 |
| 81.0 | 11.0 | "Blood Out" | Scott White | Gwendolyn M. Parker | January5,2006 | 20.94 |
| 82.0 | 12.0 | "Patient X" | Timothy Busfield | David Amann | January19,2006 | 23.12 |
| 83.0 | 13.0 | "Rage" | Kate Woods | Scott A. Williams | January26,2006 | 22.30 |
| 84.0 | 14.0 | "Odds or Evens" | Martha Mitchell | David H. Goodman | February2,2006 | 20.80 |
| 85.0 | 15.0 | "The Stranger" | John F. Showalter | Jan Nash | February9,2006 | 20.34 |
| 86.0 | 16.0 | "The Little Things" | David Grae | John Pulsan | March2,2006 | 19.78 |
| 87.0 | 17.0 | "Check Your Head" | Timothy Busfield | Diego Gutierrez | March9,2006 | 20.28 |
| 88.0 | 18.0 | "The Road Home" | Chad Lowe | David Mongan | March30,2006 | 18.48 |
| 89.0 | 19.0 | "Expectations" | Rosemary Rodriguez | David Rapp | April13,2006 | 18.62 |
| 90.0 | 20.0 | "More Than This" | Timothy Busfield | Scott A. Williams | April20,2006 | 16.93 |
| 91.0 | 21.0 | "Shattered" | Jeannot Szwarc | Amanda Segel Marks, David H. Goodman | April27,2006 | 17.93 |
| 92.0 | 22.0 | "Requiem" | John F. Showalter | Jan Nash | May4,2006 | 19.11 |
| 93.0 | 23.0 | "White Balance" | Jeff T. Thomas | Greg Walker | May11,2006 | 19.19 |
Question:
What episode titles have 17.93 million U.S. viewers?
Answer:
"Shattered"